Table Of Contents:

SECTION I Diseases and Disorders

Abdominal Aortic Aneurysm, 3

Abruptio Placentae, 7

Absence Seizures, 9

Acetaminophen Poisoning, 10

Achalasia, 11

Acne Vulgaris, 14

Acoustic Neuroma, 18

Acquired Immunodeficiency Syndrome, 19

Acute Bronchitis, 27

Acute Coronary Syndrome, 29

Acute Glomerulonephritis (AGN), 35

Acute Kidney Injury, 39

Acute Liver Failure, 44

Acute Lower Gastrointestinal Bleeding, 48

Acute Lymphoblastic Leukemia (ALL), 50

Acute Mesenteric Ischemia, 53

Acute Myelogenous Leukemia (AML), 56

Acute Pelvic Pain in Women, 60

Acute Respiratory Distress Syndrome

(ARDS), 62

Acute Tubular Necrosis, 66

Acute Urinary Retention (AUR), 68

Adrenal Insufficiency, 70

Alcohol Abuse, 72

Alcoholic Hepatitis, 76

Aldosteronism (Hyperaldosteronism, Primary), 78

Allergic Rhinitis, 80

Alopecia, 81

Alzheimer’s Disease, 84

Amaurosis Fugax, 87

Amyotrophic Lateral Sclerosis, 88

Anaerobic Infections, 90

Anaphylaxis, 91

Anemia, Autoimmune Hemolytic, 92

Anemia, Inflammatory, 95

Anemia, Iron Deficiency, 97

Anemia, Pernicious, 99

Angina Pectoris, 101

Angioedema, 107

Ankylosing Spondylitis, 109

Anorexia Nervosa, 111

Antibody-Mediated Autoimmune Encephalitis, 113

Antiphospholipid Antibody Syndrome, 114

Anxiety (Generalized Anxiety Disorder), 117

Aortic Dissection, 118

Aortic Regurgitation, 122

Aortic Stenosis, 126

Appendicitis, 130

Arrhythmogenic Right Ventricular

Dysplasia, 133

Asbestosis, 136

Ascariasis, 137

Ascites, 138

Aspergillosis, 142

Aspiration Pneumonia, 145

Asthma, 147

Astrocytoma, 158

Atelectasis, 160

Atopic Dermatitis, 161

Atrial Fibrillation, 164

Atrial Flutter, 169

Atrial Myxoma, 173

Atrial Septal Defect, 175

Atrioventricular Dissociation, 178

Attention Deficit Hyperactivity Disorder, 181

Autism Spectrum Disorder, 183

Autoimmune Hepatitis, 185

Autosomal Dominant Polycystic Kidney Disease (ADPKD), 188

AV Malformations, Cerebral, 191

Avascular Necrosis, 193

Babesiosis, 196

Barrett Esophagus, 199

Basal Cell Carcinoma, 202

Bedbug Bite, 205

Bell Palsy, 207

Benign Paroxysmal Positional Vertigo, 209

Benign Prostatic Hyperplasia (BPH), 212

Binge Eating Disorder (BED), 214

Bipolar Disorder, 216

Bite Wounds, 218

Bites and Stings, Arachnids, 220

Bites and Stings, Insect, 221

Bites, Snake, 223

Bladder Cancer, 227

Bladder Pain Syndrome, 230

Bone Tumor, Primary Malignant, 232

Brain Abscess, 234

Brain Metastases, 236

Brain Neoplasm, Benign and Low Grade, 238

Brain Neoplasm, Glioblastoma, 240

Breast Abscess, 241

Breast Cancer, 242

Bronchiectasis, 247

Brugada Syndrome, 249

Budd-Chiari Syndrome, 252

Bulimia Nervosa, 255

Burns, 257

Cancer of Unknown Primary, 261

Candidiasis, Cutaneous, 263

Candidiasis, Invasive, 265

Carbon Monoxide Poisoning, 267

Cardiac Tamponade, 269

Cardiomyopathy, Chemical-Induced, 271

Cardiomyopathy, Dilated, 275

Cardiomyopathy, Hypertrophic, 277

Cardiomyopathy, Restrictive, 282

Carotid Sinus Syndrome, 285

Carotid Stenosis, 287

Carpal Tunnel Syndrome, 289

Cat-Scratch Disease, 290

Cavernous Sinus Thrombosis, 291

Celiac Disease, 293

Cellulitis, 296

Cervical Artery Dissection, 298

Cervical Cancer, 300

Cervical Dysplasia, 304

Cervicitis, 307

Chemotherapy-Induced Nausea and Vomiting, 308

Child Abuse and Neglect, 309

Chlamydia Genital Infections, 312

Cholangitis, 315

Cholecystitis, 316

Choledocholithiasis, 317

Cholelithiasis, 319

Chronic Fatigue Syndrome, 321

Chronic Kidney Disease, 322

Chronic Lymphocytic Leukemia (CLL), 326

Chronic Myelogenous Leukemia (CML), 329

Chronic Obstructive Pulmonary Disease, 331

Cirrhosis, 337

Cirrhotic Cardiomyopathy (CCM), 340

Claudication, 342

Clostridium difficile Infection, 347

Cluster Headache, 349

Cocaine Overdose, 351

Colorectal Cancer, 354

Complex Regional Pain Syndrome, 357

Concussion, 359

Condyloma Acuminatum, 361

Conjunctivitis, 363

Connective Tissue Disease-Associated Vasculitis, 366

Constipation, 367

Contact Dermatitis, 371

Contraception, 372

Conversion Disorder (Functional

Neurologic Symptom Disorder), 375

Cor Pulmonale, 377

Coronary Artery Disease, 380

Crohn’s Disease, 389

Cryoglobulinemia, 391

Cryptococcosis, 393

Cryptogenic Organizing Pneumonia, 394

Cryptosporidium Infection, 396

Cushing’s Disease and Syndrome, 397

Cyanosis, 400

Cystic Fibrosis, 403

Cysticercosis, 406

De Quervain’s Tenosynovitis, 408

Deep Vein Thrombosis, 409

Delirium, 413

Delirium Tremens, 416

Dementia With Lewy bodies, 417

Depression, Major, 419

Dermatitis Herpetiformis, 422

Diabetes Mellitus, 424

Diabetic Foot, 434

Diabetic Ketoacidosis, 436

Diabetic Polyneuropathy, 438

Diabetic Retinopathy, 441

Diarrhea, Persistent, 443

Diffuse Idiopathic Skeletal Hyperostosis

(DISH), 446

Diplopia, 448

Discoid Lupus, 451

Disseminated Intravascular Coagulation, 454

Diverticular Disease (Diverticulosis, Diverticulitis, Diverticular Hemorrhage), 457

Drug Abuse, 460

Drug-Induced Liver Injury, 463

Drug-Induced Parenchymal Lung Disease

(DILD), 467

Dysfunctional Uterine Bleeding, 469

Dysmenorrhea, 471

Dyspepsia, Nonulcerative, 472

Dysphagia, 474

Early Repolarization Syndrome, 476

Echinococcosis, 479

Eclampsia, 481

Ectopic Pregnancy, 483

Ehrlichiosis and Anaplasmosis, 485

Ejaculation and Orgasm Disorders, 488

Elder Abuse, 492

Empyema, 494

Encephalitis, Acute Viral, 495

Encephalopathy, 497

Endocarditis, Infective, 499

Endometrial Cancer, 505

Endometriosis, 507

Enteropathic Arthritis, 509

Eosinophilic Esophagitis (EoE), 511

Epididymitis, 513

Epidural Abscess, 514

Epidural Hematoma, 515

Epiglottitis, 517

Epstein-Barr Virus Infection, 518

Erectile Dysfunction, 520

Erysipelas, 523

Erythema Multiforme, 524

Erythema Nodosum, 525

Esophageal Tumors, 526

Esophageal Varices, 530

Essential Tremor, 533

Factitious Disorder (Including

Munchausen Syndrome), 534

Falls in the Elderly, 536

Familial Adenomatous Polyposis and Gardner’s Syndrome, 538

Fatty Liver of Pregnancy, Acute, 540

Febrile Seizures, 541

Fever in the Returning Traveler, 543

Fever of Undetermined Origin, 546

Fibrocystic Breast Disease, 548

Fibromyalgia, 549

Folliculitis, 551

Food Allergies, 552

Food Poisoning, Bacterial, 556

Frostbite, 560

Functional Gallbladder Disorder, 562

Galactorrhea, 563

Gastric Cancer, 564 Gastritis, 566

Gastroenteritis, 567

Gastroesophageal Reflux Disease (GERD), 569

Gestational Diabetes Mellitus (GDM), 572

Giant Cell Arteritis, 575

Giardiasis, 577

Gilbert’s Syndrome, 578

Glaucoma, Open-Angle, 579

Glaucoma, Primary Angle-Closure, 581

Gonorrhea, 582

Goodpasture Disease, 585

Gout, 586

Granuloma Annulare, 588

Granulomatosis With Polyangiitis, 589

Graves’ Disease, 592

Guillain-Barré Syndrome, 594

Hallucinogenic Overdose, 596

Hand-Foot-Mouth Disease, 598

Head and Neck Squamous Cell Carcinoma, 599

Heart Block, Complete, 601

Heart Block, Second-Degree, 605

Heart Failure, 609

Heat Exhaustion and Heat Stroke, 626

Heavy Menstrual Bleeding (Menorrhagia), 628

Helicobacter pylori Infection, 629

Hemochromatosis, 631

Hemophilia, 633

Hemoptysis, 635

Heparin-Induced Thrombocytopenia, 637

Hepatic Encephalopathy, 639

Hepatitis A, 642

Hepatitis B, 644

Hepatitis C, 648

Hepatocellular Carcinoma, 652

Hereditary Breast and Ovarian Cancer Syndrome, 655

Herpes Simplex, 659

Herpes Simplex Keratitis, 661 Herpes Zoster, 662

Hidradenitis Suppurativa, 664

High-Altitude Sickness, 666

Hip Fracture, 668

Hirsutism, 670

HIV-Associated Cardiomyopathy, 673

HIV-Associated Cognitive Dysfunction, 674

Hodgkin Lymphoma, 676

Hookworm, 680

Horner’s Syndrome, 681

Hot Flashes, 683

Human Immunodeficiency Virus, 684

Hydrocephalus, Normal Pressure, 696

Hydronephrosis, 698

Hypercholesterolemia, 701

Hypercoagulable State, 706

Hyperemesis Gravidarum, 709

Hyperglycemic Hyperosmolar Syndrome, 710

Hyperkalemia, 712

Hyperlipoproteinemia, Primary, 717

Hypernatremia, 720

Hyperparathyroidism, 723

Hypersensitivity Pneumonitis, 726

Hypersplenism, 728

Hypertension, 729

Hyperthyroidism, 736

Hypertrophic Osteoarthropathy, 738

Hyperuricemia, 740

Hypoactive Sexual Desire Disorder (HSDD), 742

Hypoaldosteronism, 744

Hypoglycemia, 745

Hypogonadism, Male, 747

Hypokalemic Periodic Paralysis, 750

Hyponatremia, 751

Hypoparathyroidism, 754

Hypopituitarism, 756 Hypothermia, 759

Hypothyroidism, 761

Idiopathic Pulmonary Fibrosis, 763

IgA Nephropathy, 766

IgA Vasculitis, 769

Immune Thrombocytopenic Purpura, 771

Impetigo, 773

Incontinence, Bowel, Elderly Patient, 775

Incontinence, Urinary, 778

Infertility, 782

Inflammatory Myopathies, 784

Influenza, 787 Insomnia, 790

Interstitial Lung Disease, 793

Interstitial Nephritis, 796

Irritable Bowel Syndrome, 798

Ischemic Hepatitis, 802

Jaundice in the Adult Patient, 803

Juvenile Idiopathic Arthritis, 806

Kaposi Sarcoma, 809

Labyrinthitis, 810

Lactic Acidosis, 811

Lactose Intolerance, 812

Laryngitis, 813

Lead Poisoning, 814

Legg-Calvé-Perthes Disease, 816

Lemierre Syndrome, 817

Lichen Planus, 818

Lichen Sclerosus, 820

Lichen Simplex Chronicus, 821

Listeriosis, 822

Liver Abscess, 823

Long QT Syndrome, 825

Lung Abscess, 828

Lung Neoplasms, Primary, 830

Lyme Disease, 835

Lymphangitis, 837

Lymphedema, 838

Lynch Syndrome, 840

Macular Degeneration, 842

Malabsorption, 844

Malaria, 847

Malignant Hyperthermia, 852

Mallory-Weiss Tear, 855

Mastitis, 856

Mastodynia, 858

Mastoiditis, 859

Mediastinitis, 860

Meigs’ Syndrome, 862

Melanoma, 863

Ménière’s Disease, 866

Meningioma, 867

Meningitis, Bacterial, 869

Meningitis, Viral, 872

Meniscal Tear, 873

Menopause, 875

Mesenteric Adenitis, 877

Mesenteric Venous Thrombosis, 878

Mesothelioma, Malignant, 880

Methanol and Ethylene Glycol Poisoning, 882

Methicillin-Resistant Staphylococcus aureus (MRSA), 884

Microangiopathic Hemolytic Anemia, 885

Microsporidiosis, 887

Middle East Respiratory Syndrome

(MERS), 888

Migraine Headache, 889

Mild Cognitive Impairment, 892

Mitral Regurgitation, 893

Mitral Stenosis, 897

Mitral Valve Prolapse, 900

Molar Pregnancy, 902

Molluscum Contagiosum, 905

Monoclonal Gammopathy of Undetermined Significance (MGUS), 906

Mononucleosis, 908

Mucormycosis, 910

Multidrug-Resistant Gram-Negative Rods

(MDR-GNRs), 911

Multifocal Atrial Tachycardia, 912

Multiple Endocrine Neoplasia, 913

Multiple Myeloma, 915

Multiple Sclerosis, 918

Mushroom Poisoning, 921

Myasthenia Gravis, 922

Myelodysplastic Syndromes, 924

Myocardial Infarction, 926

Myocarditis, 934

Myoclonus, 937

Myofascial Pain Syndrome, 938

Myotonia, 940

Narcolepsy, 941

Necrotizing Fasciitis, 944

Nephrotic Syndrome, 946

Neurocognitive Disorders, 949

Neurofibromatosis, 951

Neuroleptic Malignant Syndrome, 953

Neuropathic Pain, 954

Neuropathy, Hereditary, 957

New Onset Seizures, 959

Nonalcoholic Fatty Liver Disease, 961

Nonallergic Rhinitis, 963

Non-Hodgkin’s Lymphoma, 965

Obesity, 969

Obesity-Hypoventilation Syndrome, 973

Obsessive-Compulsive Disorder, 975

Opioid Overdose, 976

Opioid Use Disorder, 977

Optic Neuritis, 980

Oral Cancer, 981

Oral Hairy, Leukoplakia, 983

Orchitis, 984

Orthostatic Hypotension, 985

Osteoarthritis, 987 Osteomyelitis, 989

Osteoporosis, 991

Otitis Externa, 994

Otitis Media, 996

Ovarian Cancer, 998

Ovarian Neoplasm, Benign, 1000

Paget’s Disease of Bone, 1001

Paget’s Disease of the Breast, 1002

Pain Management in Chronic Pain, 1003

Pancreatic Cancer (Exocrine), 1006

Pancreatitis, Acute, 1010

Pancreatitis, Chronic, 1015

Panic Disorder, With or Without Agoraphobia, 1020

Panniculitis, 1022

Paraneoplastic Syndromes, 1024

Parkinson’s Disease, 1028

Partial Seizures, 1031

Pediculosis, 1033

Pelvic Abscess, 1035

Pelvic Congestion Syndrome, 1036

Pelvic Inflammatory Disease, 1038

Pelvic Organ Prolapse, 1040

Peptic Ulcer Disease, 1043

Pericarditis, 1045

Periodic Limb Movement Disorder, 1050

Peripheral Artery Disease, 1052

Perirectal Abscess, 1057

Peritonitis, Secondary, 1058

Peritonsillar Abscess, 1059

Pertussis, 1061

Peutz-Jeghers Syndrome and Other

Polyposis Syndromes, 1063 Pharyngitis/Tonsillitis, 1065

Pheochromocytoma, 1067

Pilonidal Disease, 1069

Pinworms, 1070

Pituitary Adenoma, 1071

Placenta Previa, 1074

Pleural Effusion, 1076

Pleurisy, 1079

Pneumonia, Bacterial, 1080

Pneumonia, Mycoplasma, 1087

Pneumonia, Pneumocystis jiroveci (carinii), 1089

Pneumonia, Viral, 1091

Pneumothorax, Spontaneous, 1094

Polyarteritis Nodosa, 1098

Polycystic Ovary Syndrome, 1100

Polycythemia Vera, 1104

Polymyalgia Rheumatica, 1106

Porphyrias, 1107

Portal Hypertension, 1109

Portal Vein Thrombosis, 1112

Postconcussive Syndrome, 1113

Postherpetic Neuralgia, 1115

Postpartum Depression, 1117

Postpartum Hemorrhage, 1118

Postthrombotic Syndrome, 1120

Posttraumatic Stress Disorder, 1121

Preeclampsia, 1123

Premature Rupture of Membranes, 1126

Premenstrual Syndrome, 1128

Pressure Injury, 1130

Preterm Labor, 1133

Primary Biliary Cholangitis, 1135

Primary Ovarian Insufficiency, 1138

Primary Sclerosing Cholangitis, 1139

Prolactinoma, 1142

Prostate Cancer, 1144

Prostatitis, 1148

Pseudogout, 1150

Psoriasis, 1152

Psoriatic Arthritis, 1154

Psychosis, 1156

Pulmonary Edema, 1158

Pulmonary Embolism, 1161

Pulmonary Hypertension, 1167

Pulseless Electrical Activity, 1173

Pyelonephritis, 1174

Ramsay Hunt Syndrome, 1178

Raynaud’s Phenomenon, 1179

Reiter’s Syndrome (Reactive Arthritis), 1183

Renal Abscess, 1184

Renal Artery Stenosis, 1185 Renal Cell Carcinoma, 1189

Renal Tubular Acidosis, 1191

Renal Vein Thrombosis, 1193

Restless Legs Syndrome, 1194

Retropharyngeal Abscess, 1196

Rh Incompatibility, 1198

Rhabdomyolysis, 1201

Rheumatoid Arthritis, 1204

Rocky Mountain Spotted Fever, 1208

Rosacea, 1210

Roseola, 1212

Salivary Gland Neoplasms, 1213

Salmonellosis, 1214

Sarcoidosis, 1216

Sarcoma, 1219

Scabies, 1222

Schizophrenia, 1225

Sciatica, 1227 Scleritis, 1230

Scleroderma (Systemic Sclerosis), 1231

Scoliosis, 1235

Seborrheic Dermatitis (SD), 1237

Seizures, Generalized Tonic Clonic, 1238

Sepsis, 1240

Septic Arthritis, 1243

Serotonin Syndrome, 1245

Sexual Assault, 1247

Sexual Dysfunction in Women, 1250

Shaken Baby Syndrome, 1253

Shigellosis, 1254

Short Bowel Syndrome, 1255

Short QT Syndrome, 1258

Sialadenitis, 1260

Sialolithiasis, 1261

Sick Sinus Syndrome, 1262

Sickle Cell Disease, 1263

Silicosis, 1267

Sinusitis, 1268

Sjögren’s Syndrome, 1270

Sleep Apnea, 1273

Small Bowel Bacterial Overgrowth (SIBO), 1278

Small Bowel Obstruction, 1280

Somatic Cough Syndrome and Tic Cough, 1282

Somatic Symptom Disorder, 1284

Spinal Cord Compression, 1285

Spinal Epidural Abscess, 1288

Spinal Stenosis, Cervical Spine, 1290

Spinal Stenosis, Lumbar, 1292

Spontaneous Abortion, 1294

Spontaneous Bacterial Peritonitis, 1296

Squamous Cell Carcinoma, 1297

Statin-Induced Muscle Syndrome, 1299

Status Epilepticus, 1301

Stevens-Johnson Syndrome, 1304

Stomatitis/Mucositis, 1306

Stroke, Acute Ischemic, 1307

Stroke, Hemorrhagic, 1311

Stroke, Secondary Prevention, 1314

Subarachnoid Hemorrhage, 1316

Subclavian Steal Syndrome, 1319

Subdural Hematoma, 1320

Substance Use Disorder, 1321

Superior Vena Cava Syndrome, 1323

Supraventricular Tachycardia, 1325

Syncope, 1328

Syndrome of Inappropriate Antidiuresis, 1331

Synthetic Cannabinoids, 1334

Syphilis, 1335

Systemic Lupus Erythematosus, 1338

Takotsubo Cardiomyopathy, 1342

Tapeworm Infestation, 1344

Tardive Dyskinesia, 1346

Temporomandibular Joint Syndrome, 1347

Tension-Type Headache, 1348

Testicular Cancer, 1349

Testicular Torsion, 1352

Thalassemias, 1354

Thoracic Outlet Syndrome, 1357

Thrombocytosis, 1359

Thrombophlebitis, Superficial Venous, 1361

Thrombotic Thrombocytopenic Purpura, 1362

Thyroid Carcinoma, 1364

Thyroid Nodule, 1366

Thyroiditis, 1368

Tinea Capitis, 1369

Tinea Corporis, 1372

Tinea Cruris, 1373

Tinea Pedis, 1374

Tinea Unguium, 1375

Tinea Versicolor, 1377

Tinnitus, 1378

Torsade de Pointes, 1379

Tourette’s Syndrome, 1382

Toxic Megacolon, 1384

Toxic Shock Syndrome, 1386

Toxoplasmosis, 1388

Transfusion Reaction, Hemolytic, 1392

Transient Global Amnesia, 1394

Transient Ischemic Attack, 1395

Transverse Myelitis, 1397

Traumatic Brain Injury (TBI), 1399

Traveler’s Diarrhea, 1403

Trigeminal Neuralgia, 1405

Trochanteric Pain Syndrome (Trochanteric Bursitis), 1406

Tuberculosis, Miliary, 1408

Tuberculosis, Pulmonary, 1410

Tumor Lysis Syndrome, 1413

Ulcerative Colitis, 1416

Urethritis, Gonococcal, 1421

Urethritis, Nongonococcal, 1422

Urinary Tract Infection, 1423

Urolithiasis (Nephrolithiasis), 1426

Urticaria, 1432

Uterine Fibroids, 1434

Uterine Malignancy, 1437

Uveitis, 1438

Vaginal Bleeding During Pregnancy, 1439

Vaginal Malignancy, 1440

Vaginismus, 1441

Vaginitis, Prepubescent, 1442

Vaginitis, Trichomonas, 1443

Vaginosis, Bacterial, 1444

Vancomycin-Resistant Enterococcus (VRE), 1445

Vasculitis, Systemic, 1446

Venous Insufficiency, Chronic, 1449

Venous Ulcers, 1451

Ventricular Fibrillation, 1453

Ventricular Septal Defect, 1455

Ventricular Tachycardia, 1458

Vertebral Compression Fractures, 1464

Vestibular Neuronitis, 1466

Vitamin D Deficiency, 1467

Vitamin Deficiency (Hypovitaminosis), 1469

Vitiligo, 1471

Von Willebrand’s Disease, 1473

Waldenström Macroglobulinemia, 1475

Warts, 1477

Wolff-Parkinson-White Syndrome, 1480

Additional Topics Available at www.expertconsult.com

Abdominal Compartment Syndrome

Achilles Tendon Rupture

Acromegaly

Actinic Keratosis

Actinomycosis

Acute Colonic Pseudo-Obstruction

(Ogilvie’s Syndrome)

Acute Stress Disorder

Adult-Onset Still’s Disease

Alpha-1-Antitrypsin Deficiency

Amblyopia

Amebiasis

Amenorrhea

Amyloidosis

Anal Fissure

Anemia, Aplastic

Anemia, Sideroblastic

Angular Cheilitis

Ankle Fracture

Ankle Sprain

Anorectal Fistula

Anoxic Brain Injury

Anthrax

Aortic Coarctation

Asthma-COPD Overlap Syndrome

Ataxia

Ataxia Telangiectasia

Baker’s Cyst

Balanitis

Bartholin’s Gland Cyst and Abscess

Bartter Syndrome

Basic Calcium Phosphate Crystal Deposition Disease

Behçet’s Disease

Biceps Tendonitis

Bisphosphonate-Related Osteonecrosis of the Jaw

Blastomycosis

Blepharitis

Body Dysmorphic Disorder

Borderline Personality Disorder

Botulism

Breech Birth

Brucellosis

Bruxism

Bullous Pemphigoid

Burning Mouth Syndrome

Bursitis

Calcium-Alkali Syndrome

Carcinoid Syndrome

Cardiorenal Syndrome

Cataracts

Cerebral Palsy

Cerebral Vasculitis

Cervical Disc Syndromes

Cervical Insufficiency

Cervical Polyps

Chagas’ Disease

Chancroid

Charcot Joint

Charcot-Marie-Tooth Disease

Cholangiocarcinoma

Cholera

Chorea

Chronic Inflammatory Demyelinating Polyneuropathy

Coccidioidomycosis

Cogan’s Syndrome

Colorado Tick Fever

Compartment Syndrome

Conduct Disorder

Congenital Adrenal Hyperplasia

Contrast-Induced Acute Kidney Injury

(CI-AKI)

Corneal Abrasion

Corneal Ulceration

Costochondritis

Craniopharyngioma

Creutzfeldt-Jakob Disease

Croup (Laryngotracheobronchitis)

Cryptorchidism

Cubital Tunnel Syndrome

Cutaneous Larva Migrans

Cyclic Vomiting Syndrome

Cytomegalovirus Infection

Delayed Puberty

Delusional Parasitosis

Dengue Fever

Dependent Personality Disorder

Diabetes Insipidus

Digoxin Overdose

Diphtheria

Dissociative Disorders

Down Syndrome

Drowning

Dumping Syndrome

Dupuytren’s Contracture

Dyspareunia

Dystonia

Ehlers-Danlos Syndrome

Electrical and Lightning Injury

Emergency Contraception

Encopresis

Endometritis

Enuresis

Eosinophilic Fasciitis

Eosinophilic Granulomatosis with Polyangiitis

Eosinophilic Pneumonias

Epicondylitis

Epiploic Appendagitis

Episcleritis

Epistaxis

Erythema Elevatum Diutinum

Failure to Thrive (Pediatric)

Familial Mediterranean Fever (FMF)

Felty’s Syndrome

Fetal Alcohol Syndrome

Fifth Disease (Parvovirus B19 Infection)

Filariasis

Friedreich’s Ataxia

Frozen Shoulder

Ganglia

Gastrinoma

Gender Dysphoria Disorder and Gender Nonconformity

Gingivitis

Gingivitis, Necrotizing Ulcerative (NUG)

Glenohumeral Dislocation

Glossitis

Granuloma Inguinale

Granulomatous Arthritis

Grief, Complicated or Prolonged

Gynecomastia

Hairy Cell Leukemia

Hantavirus Pulmonary Syndrome

Health Care-Associated Infections (HAIs)

HELLP Syndrome

Hemolytic-Uremic Syndrome

Hemorrhoids

Hepatitis D

Hepatitis E

Hepatopulmonary Syndrome

Hepatorenal Syndrome

Herpangina

Hiatal Hernia

Histocytosis X (Langerhans Cell Histocytosis)

Histoplasmosis

Histrionic Personality Disorder

Hoarding Disorder

Huntington’s Disease

Hydrocele

Hypereosinophilic Syndrome

Hypochondriasis (Illness Anxiety Disorder)

Hypocomplementemic Urticarial Vasculitis

Hypospadias

ID Reaction

Idiopathic Intracranial Hypertension Inclusion Body Myositis

Infantile Hypotonia

Influenza, Avian

Insulinoma

Intermittent Explosive Disorder

Intraventricular Conduction Delay (IVCD)

Ischemic Optic Neuropathy

Kawasaki Disease

Keloid

Klinefelter’s Syndrome

Korsakoff’s Psychosis

Lambert-Eaton Myasthenic Syndrome

Laryngeal Carcinoma

Leishmaniasis

Leprosy

Leptospirosis

Liver Transplantation

Lumbar Disk Syndrome

Lymphogranuloma Venereum

Marfan’s Syndrome

Mastocytosis

Measles (Rubeola)

Meckel Diverticulum

Meningitis, Fungal

Meningomyelocele

Meralgia Paresthetica

Metabolic Syndrome

Metatarsalgia

Microscopic Polyangiitis

Mixed Connective Tissue Disease

Morton Neuroma

Motion Sickness

Multiple System Atrophy

Mumps

Muscular Dystrophy

Mycosis Fungoides

Myxedema Coma

Narcissistic Personality Disorder

Nasal Polyps

Necrotizing Autoimmune Myopathy (NAM)

Nephroblastoma

Nephrogenic Systemic Fibrosis

Neuroblastoma

Nocardiosis

Ocular Foreign Body

Oppositional Defiant Disorder (ODD)

Optic Atrophy

Osgood-Schlatter Disease

Osler-Rendu-Weber Syndrome

Osteochondritis Dissecans

Otosclerosis (Otospongiosis)

Over-the-Counter Medication Use in Pregnancy

Paranoid Personality Disorder

Paraphilic Disorders

Paronychia

Paroxysmal Cold Hemoglobinuria

Paroxysmal Nocturnal Hemoglobinuria

Patellofemoral Pain Syndrome

Patent Ductus Arteriosus

Patent Foramen Ovale

Pediatric Medication Errors

Pedophilic Disorder

Torticollis

Toxic Epidermal Necrolysis

Tracheitis

Trichinosis

Tricuspid Regurgitation

Tricuspid Stenosis

Tricyclic Antidepressant Overdose

Trigger Finger

Tropical Sprue

Tuberous Sclerosis

Tularemia

Turner Syndrome

Typhoid Fever

Upper Extremity Deep Vein Thrombosis

Urticaria, Chronic

Vaginal Fistulas

Vaginitis, Estrogen-Deficient

Vaginitis, Fungal

Varicella

Varicocele

Varicose Veins

Viral Bronchiolitis

Von Hippel-Lindau Disease

Vulvar Cancer

Wernicke Syndrome

West Nile Virus Infection

Whiplash

Whipple’s Disease

Wilson’s Disease

Yellow Fever

Pemphigus Vulgaris

Peyronie’s Disease

Phobias

Piriformis Syndrome

Pityriasis Rosea Plantar Fasciitis

Poison Ivy Dermatitis

Poliomyelitis

Polypharmacy

Postpoliomyelitis Syndrome

Postural Orthostatic Tachycardia Syndrome (POTS)

Precocious Puberty

Premenstrual Dysphoric Disorder

Preoperative Evaluation

Priapism

Primary Angiitis of the Central Nervous System

Primary Immunodeficiency Disease

Primary Myelofibrosis

Progressive Multifocal

Leukoencephalopathy (PML)

Progressive Supranuclear Palsy

Pronator Syndrome

Pruritus Ani

Pruritus Vulvae

Psittacosis

Pure Red Cell Aplasia

Pyoderma Gangrenosum

Pyogenic Granuloma

Q Fever

Quadrilateral Space Syndrome

Rabies

Radiation Exposure

Rectal Prolapse Respiratory Syncytial Virus

Retinal Detachment

Retinal Hemorrhage

Retinitis Pigmentosa

Retinoblastoma

Retroperitoneal Fibrosis

Reye’s Syndrome

Rheumatic Fever

Rickets

Rotator Cuff Disease

Rubella

Scarlet Fever

Schistosomiasis

Seasonal Affective Disorder

Sheehan’s Syndrome

Slipped Capital Femoral Epiphysis (SCFE)

Smallpox

Social Anxiety Disorder

Spasticity

Spina Bifida

Spinocerebellar Ataxia

Sporotrichosis

Strabismus

Sturge-Weber Syndrome

Stuttering

Stye (Hordeolum)

Suicide

Syringomyelia

Tabes Dorsalis

Takayasu’s Arteritis

Tarsal Tunnel Syndrome

Tetanus

Tetralogy of Fallot

Thromboangiitis Obliterans

Thyrotoxic Storm

Zenker’s (Pharyngoesophageal) Diverticulum

Zika Virus?

SECTION II Differential Diagnosis

Abdominal Distention, 1485

Abdominal Pain, Adolescence, 1485

Abdominal Pain, Childhood, 1485

Abdominal Pain, Chronic Lower, 1485

Abdominal Pain, Diffuse, 1485

Abdominal Pain, Epigastric, 1485

Abdominal Pain, Extraabdominal and Systemic Causes, 1485

Abdominal Pain, Infancy, 1486

Abdominal Pain, Left Lower Quadrant, 1486

Abdominal Pain, Left Upper Quadrant, 1486

Abdominal Pain, Nonsurgical Causes, 1486

Abdominal Pain, Periumbilical, 1486

Abdominal Pain, Poorly Localized, 1486

Abdominal Pain,

Post-cholecystectomy, 1487

Abdominal Pain, Pregnancy, 1487

Abdominal Pain, Right Lower Quadrant, 1487

Abdominal Pain, Right Upper Quadrant, 1487

Abdominal Pain, Right Upper Quadrant, Differential Diagnosis in Pregnancy, 1487

Abdominal Pain, Suprapubic, 1487

Abdominal Wall Masses, 1487

Abortion, Recurrent, 1488

Aches and Pains, Diffuse, 1488

Acidosis, Hyperchloric Metabolic, 1488

Acidosis, Lactic, 1488

Acidosis, Metabolic, 1488

Acidosis, Respiratory, 1488

Acute Kidney Injury and Liver Disease, Causes, 1489

Acute Kidney Injury Due to Intrinsic Renal Diseases, 1489

Acute Kidney Injury, HIV Patient, Causes, 1489

Acute Kidney Injury in Specific Clinical Settings, 1489

Acute Kidney Injury, Pigment Induced, 1490

Acute Lung Injury, Disease and Disorders Associations, 1490

Acute Scrotum, 1490

Adnexal Mass, 1490

Adrenal Calcifications, 1491

Adrenal Cystic Lesions, 1491

Adrenal Masses, 1491

Adrenal Pseudomasses, 1491

Adrenocortical Hyperfunction, 1491

Adrenocortical Hypofunction, 1491

Adverse Food Reactions, Differential Diagnosis, 1492

Adynamic Ileus, 1492

Aerophagia (Belching, Eructation), 1492

Air-Space Opacification on X-Ray, 1492

Airway Obstruction, Pediatric Age, 1492

Akinetic/Rigid Syndrome, 1493

Alcohol-Related Seizures, 1493

Alkalosis, Metabolic, 1493

Alkalosis, Respiratory, 1493

Alopecia, 1493

Alopecia and Hypotrichosis, in Children and Adolescents, 1494

Alopecia, Drug-Induced, 1494

Alveolar Consolidation, 1494

Alveolar Hemorrhage, 1494

Amenorrhea, 1495

Amnesia, 1495

Amniotic Fluid a-Fetoprotein Elevation, 1495

Anal Abscess and Fistula, 1495

Anal Incontinence, 1495

Anaphylaxis, 1495

Anaphylaxis Mimics, 1496

Anaphylaxis, Pathophysiologic Classification, 1496

Anaphylactoid Syndrome of Pregnancy, 1496

Androgen Excess, Reproductive-Age Woman, 1496

Androgen Resistance, 1496

Anemia, Aplastic, 1496

Anemia, Aplastic, Due to Drugs and Chemicals, 1496

Anemia, Causes in Pregnancy, 1497

Anemia, Drug-Induced, 1497

Anemia, Hypochromic, 1497

Anemia, Low Reticulocyte Count, 1498

Anemia, Megaloblastic, 1498

Anemia, Microcytic, Hypochromic, Differential Diagnosis, 1499

Anergy, Cutaneous, 1499

Aneurysms, Thoracic Aorta, 1499

Anhidrosis, 1499

Anion Gap Acidosis, 1499

Anion Gap Increase, 1499

Anisocoria, 1499

Anorectal Disease, AIDS Patient, 1500

Anorexia, 1500

Anovulation, 1500

Appendicitis, Differential Diagnosis in Pregnancy, 1500

Appetite Loss in Infants and Children, 1500

Arterial Occlusion, 1501

Arthritis and Abdominal Pain, 1501

Arthritis and Diarrhea, 1501

Arthritis and Eye Lesions, 1501

Arthritis and Heart Murmur, 1501

Arthritis and Muscle Weakness, 1501

Arthritis and Rash, 1501

Arthritis and Subcutaneous Nodules, 1501

Arthritis and Weight Loss, 1501

Arthritis or Extremity Pain, in Children and Adolescents, 1501

Arthritis, Axial Skeleton, 1502

Arthritis, Chronic, Monoarticular or

Oligoarticular, Infectious Causes, 1502

Arthritis, Fever, and Rash, 1502

Arthritis, Monoarticular and Oligoarticular, 1502

Arthritis, Pediatric Age, 1503

Arthritis, Polyarticular, 1503

Ascites, 1503

Aspiration Lung Injury, Children, 1503

Asthenia, 1504

Asthma, Childhood, 1504

Ataxia, 1504

Ataxia, Acute or Recurrent, 1504

Ataxia, Cerebellar, Adult Onset, 1504 Ataxia, Cerebellar, Children, 1505

Ataxia, Chronic or Progressive, 1505

Atelectasis, 1505

Atrial Enlargement, Left Atrium, 1505

Atrial Enlargement, Right Atrium, 1505

Atypical Lymphocytosis, Heterophil

Negative, Infectious Causes, 1505

AV Nodal Block, 1505

Back Pain, 1505

Back Pain, Children and Adolescents, 1506

Back Pain, Low, Acute, 1506

Back Pain, Viscerogenic Origin, 1506

Bacterial Overgrowth, Small Intestine, 1506

Ballism, 1506

Bile Duct, Dilated, 1506

Biliary Obstruction, 1507

Biliary Tree, Reflux of Gas or Bowel, 1507

Bladder (Urinary) Wall Thickening, 1507

Bleeding, GI In Patients With AIDS, 1507

Bleeding, Lower GI, 1507

Bleeding, Lower GI, Pediatric, 1507

Bleeding, Rectal, 1508

Bleeding, Third Trimester, 1508

Bleeding, Upper GI, 1508

Bleeding, Upper GI, Pediatric, 1508

Bleeding, Vaginal,

Non-Pregnant Female, 1508

Blindness, Geriatric Age, 1508

Blindness, Monocular, Transient, 1509

Blindness, Pediatric Age, 1509

Blisters, Subepidermal, 1509

Bone and/or Soft Tissue Hypertrophy, 1509

Bone Density, Decreased, Generalized, 1510

Bone Density, Decreased, Localized, 1510

Bone Lesions, Preferential Site of Origin, 1510

Bone Marrow Failure Syndromes, Inherited, 1510

Bone Marrow Fibrosis, 1510

Bone Mass, Low, 1511

Bone Mineral Density, Increased, 1511

Bone Pain, 1511

Bone Resorption, 1511

Bowel Wall Thickening, 1511

Bow Legs (Genu Varum), Classification, 1511

Bradycardia, Sinus, 1512

Brain Mass, 1512

Breast Inflammatory Lesion, 1512 Breast Mass, 1512

Breath Odor, 1512

Breathing, Noisy, 1512

Bronchial Obstruction, 1512

Bronchopleural Fistula, 1512

Brown Urine, 1513

Bruising, 1513

Bullous Diseases, 1513

Café-Au-Lait Spots, 1513

Calcification On Chest X-Ray, 1513

Calcifications, Abdominal, Nonvisceral on X-ray, 1513

Calcifications, Adrenal Gland on X-Ray, 1513

Calcifications, Cardiac On X-Ray, 1513

Calcifications, Cutaneous, 1514

Calcifications, Genital Tract, Female On X-ray, 1514

Calcifications, Liver On X-ray, 1514

Calcifications, Pancreas on X-Ray, 1514

Calcifications, Spleen on X-Ray, 1514

Calcifications, Valvular on X-Ray, 1514

Calcium Stones, 1514

Cardiac Arrest, Nontraumatic, 1515

Cardiac Death, Sudden, 1515

Cardiac Enlargement, 1515

Cardiac Murmurs, 1515

Cardiac Tumors, 1515

Cardioembolism, 1515

Cardiogenic Shock, 1516

Cataracts, Pediatric Age, 1516

Cavitary Lesion on Chest X-Ray, 1516

Cerebral Infarction Secondary to Inherited Disorders, 1516

Cerebral Vasculitis, Causes, 1517

Cerebrovascular Disease, Ischemic, 1517

Cervical Instability, Pediatric, 1517

Chest Pain, Children, 1517

Chest Pain, Nonpleuritic, 1517

Chest Pain, Pleuritic, 1518

Chest Wall Tumors, Primary, 1518

Chiasmal Disease, 1518

Childhood Eosinophilia, 1518

Cholangitis, Acute, 1518

Cholestasis, 1518

Cholestasis, Neonatal And Infantile, Differential Diagnosis, 1519

Cholestatic Liver Enzyme Elevation, Extrahepatic Causes, 1519

Cholestatic Liver Enzyme Elevation, Intrahepatic Causes, 1519

Chorea, 1520

Choreoathetosis, 1520

Chylothorax, 1520

Cloudy Urine, 1520

Clubbing, 1520

Cobalamin Deficiency, 1520

Colic, Acute Abdominal, 1521

Colon Ischemia, 1521

Color Changes, Cutaneous, 1521

Coma, 1521

Coma, Normal Computed Tomography, 1522

Coma, Pediatric Population, 1522

Congestive Heart Failure and Cardiomyopathy, 1522

Congestive Heart Failure, Infant, 1523

Conjunctival Neoplasm, 1523

Consciousness Impairment, Acute, in Critically Ill Patient, 1523

Constipation, 1523

Constipation, Adult Patient, 1523

Copd Decompensation, 1524

Corneal Sensation, Decreased, 1524

Cough, 1524

Cough, Chronic, Adult Patient, 1524

Cutaneous Infections, Athletes, 1525

Cyanosis, 1525

Cyanosis, Neonatal, 1525

Daytime Sleepiness, 1525

Delayed Passage of Meconium, 1525

Delirium, 1525

Delirium and Agitation, Drug-Induced, 1526

Delirium, Agitated, 1526

Delirium, Dialysis Patient, 1526

Demyelinating Diseases, 1526

Diaphragm Elevation, Bilateral, Symmetrical, 1526

Diaphragm Elevation, Unilateral, 1526

Diarrhea, Acute Watery and Bloody, 1526

Diarrhea, Infectious, 1527

Diarrhea, Noninfectious, 1527

Diarrhea in Patients With AIDS, 1528

Diarrhea, Tube-Fed Patient, 1528

Diplopia, Binocular, 1528

Diplopia, Monocular, 1528

Diplopia, Vertical, 1528

Dysentery and Inflammatory Enterocolitis, 1528

Dizziness, 1529

Dry Eye, 1529

Dyslipoproteinemias, Secondary Causes, 1529

Dyspareunia, 1529

Dyspepsia and Pyrosis, Differential

Diagnosis During Pregnancy, 1529

Dysphagia, 1529

Dysphagia, Esophageal, 1530

Dysphagia, Oropharyngeal, 1530

Dyspnea, 1530

Dysuria, 1530

Earache, 1530

Ectopic Acth Secretion, 1530

Edema, Children, 1530

Edema, Generalized, 1531

Edema, Leg, Unilateral, 1531

Edema of Lower Extremities, 1531

Ejection Sound or Click, 1531

Elbow Pain, 1531

Elevated Hemidiaphragm, 1531

Emboli, Arterial, 1531

Emesis, Pediatric Age, 1531

Encephalomyelitis, Nonviral Causes, 1532

Encephalopathy, Hypertensive, 1532

Encephalopathy, Metabolic, 1532

Endometrial Thickening, 1532

Enthesopathy, 1532

Eosinophilia, Disease Associations, 1532

Eosinophilia, GI, 1533

Eosinophilic Lung Disease, 1533

Eosinophilia, Parasitic Causes, 1533

Epigastric Pain, 1533

Epilepsy, 1534

Epistaxis, 1534

Erectile Dysfunction, Organic, 1534

Erosions, Genitalia, 1534

Erythematous Annular Skin Lesions, 1534

Erythrocytosis, 1534

Erythroderma, 1534

Esophageal Perforation, 1534

Esophageal Strictures, 1534

Esophageal Tumors, Benign, 1535

Esophagitis, 1535

Esophagus, Systemic Diseases, 1535

Esotropia, 1535

Exanthems, 1535

Eyelid Neoplasm, 1535

Eyelid Retraction, 1535

Eye Pain, 1535

Facial Pain, 1536

Facial Paralysis, 1536

Failure To Thrive, 1536 Fatigue, 1536

Fatigue, Chronic, 1536

Fatty Liver, 1537

Fever and Cardiopulmonary Failure, 1537

Fever and Jaundice, 1537

Fever and Lymphadenopathy, 1537

Fever and Rash, 1537

Fever and Rash in ICU, 1538

Fever, after Travel to the Tropics, 1538

Fever, Drug-Induced, 1538

Fever, Hospital Associated, 1538

Fever in Returning Travelers and Immigrants, 1539

Fever, Noninfectious Causes, 1539

Fever, Postpartum, 1539

Fever, Periodic, 1539

Fever, Pediatric, Acute, 1540

Fever, Recurrent or Periodic, in Children, 1540

Fever With Maculopapular or Petechial Rash, 1540

Finger Lesions, Inflammatory, 1540

Flaccid Paralysis, Acute, Differential Diagnosis, 1540

Flatulence and Bloating, 1541

Flushing, 1541

Folate Deficiency, 1541

Foot and Ankle Pain, 1541

Foot and Ankle Pain, in Different Age Groups, 1541

Foot Dermatitis, 1542

Footdrop, 1542

Foot Lesion, Ulcerating, 1542

Foot Pain, 1542

Foot Pain by Age, 1542

Forearm and Hand Pain, 1542

Forearm Fractures, 1542

Gait Abnormality, 1543

Galactorrhea, 1543

Gallbladder Sonographic

Non-Visualization, 1543

Gallbladder Wall Thickening, 1543

Gastric Dilatation, 1543

Gastric Emptying, Delayed, 1543 Gastric Emptying, Rapid, 1543

Genital Discharge, Female, 1543

Genital Lesions, Infectious Causes, 1544

Genital Lesions, Noninfectious Causes, 1544

Genital Sores, 1544

Glomerulonephritis Associated With Malignancy, 1544

Glomerulonephritis, Rapidly Progressive, 1544

Glomerulopathies, Thrombotic, Microangiopathic, 1544

Glomerulosclerosis, Focal Segmental, 1544

Glossodynia, 1544

Glucocorticoid Deficiency, 1545

Goiter, 1545

Granulomatous Dermatitides, 1545

Granulomatous Disorders, 1545

Granulomatous Liver Disease, 1546

Green or Blue Urine, 1546

Groin Lump, 1546

Groin Masses, 1546

Groin Pain, 1546

Groin Pain, Active Patient, 1546

Gynecomastia, 1547

Hair Loss, 1547

Halitosis, 1547

Hand Pain and Swelling, 1547

Headache, 1547

Headache, Acute, 1547

Headache and Facial Pain, 1548

Headache, Chronic, 1548

Head and Neck, Soft Tissue Masses, 1548

Hearing Loss, Acute, 1548

Heartburn and Indigestion, 1548

Heart Failure With Preserved Left

Ventricular Ejection Fraction, 1549

Heart Failure, Acute, 1549

Heart Failure, Chronic, 1549

Heart Failure, Congenital Heart Disease Causes, 1549

Heart Failure, Pathogenic Causes, 1549

Heart Failure, Pregnancy, 1550

Heat Stroke, 1550

Heel Pain, 1550

Heel Pain, Plantar, 1550

Hemarthrosis, 1550

Hematemesis, 1550

Hematuria, 1550

Hematuria, Differential Based on Age and

Sex, 1550

Hematuria, in Children, 1551

Hemiparesis/Hemiplegia, 1551

Hemolysis and Hemoglobinuria, 1551

Hemolysis, Intravascular, 1551

Hemolysis, Mechanical, 15

Dettaglio

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