This issue of Surgical Pathology Clinics focuses on diseases of the genitourinary tract: Prostate, Kidney, Bladder, Testes, and Adrenals. As with all information in this series, presentations relate to the daily practice of surgical pathologists. A practical and innovative feature in this issue is the inclusion of several articles from the "clinician's perspective" in which an oncologist discusses the diagnosis of the disease and relates this to the information they require from the pathologist. Topics include: Morphologic updates in prostate pathology; Molecular updates in prostate pathology; Diagnosis of prostate carcinoma:  A clinician's perspective; Commonly encountered renal neoplasms; Emerging dntities in renal neoplasia; Diagnosis of renal cell carcinoma:  A clinician's perspective;  Morphologic and molecular characteristics of bladder cancer; Diagnosis of bladder carcinoma: A clinician's perspective; Overview of testicular neoplasia; Diagnosis of testicular cancer:  A clinician's perspective; Overview of adrenal neoplasia; Diagnosis of adrenal carcinoma:  A clinician's perspective; Benign lesions of the GU tract . Michelle Hirsch leads this issue with a group of expert genitourinary pathologists and oncologists.