Definition A subtype of well-differentiated squamous cell carcinoma (SCC) with broad papillary fronds and pushing base; no apparent association with HPV infection Clinical features You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles…
Definition Distinctive, locally aggressive fibromyxoid tumor of the pelvic and genital region; also termed deep angiomyxoma Clinical features Epidemiology Rare; approximately 150 cases reported to date Predominantly affecting females with males rarely affected (female-to-male ratio, 7.5:1) Mean age, 46 years…
Definition Rare benign testicular gonadal stromal tumor Clinical features Epidemiology Typically occurs in children 4 years old or younger, with most cases occurring before 1 year of age Accounts for 1%–5% of all prepubertal testis tumors Most common congenital testicular…
Definition Nonspecific granulomatous orchitis is a rare and unusual disease with mixed chronic and granulomatous inflammation of an unknown etiology. Clinical features You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership…
Definition Failure of the testis to descend from an abdominal position through the inguinal canal into the scrotum during fetal development Clinical features You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become…
Definition Rare low-grade fibroblastic neoplasm of infancy arising in the renal sinus Clinical features Epidemiology Two to four percent of pediatric renal tumors Ninety percent occur in the first year of life. Nearly all reported cases within less than 30…
Definition A highly aggressive type of renal carcinoma originating from collecting duct epithelium; also known as carcinoma of the collecting ducts of Bellini Clinical features Epidemiology Less than 1% of renal cancers Occurs mostly in adults; rare cases reported in…
Definition Adenocarcinoma originating in other organs with secondary involvement of the bladder through direct extension or via lymphatic or vascular spread Clinical features You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become…
Definition Unusual form of divergent differentiation in urothelial carcinoma characterized by the presence of human chorionic gonadotrophin (hCG) positive syncytiotrophoblastic giant cells or by a choriocarcinoma component Clinical features You’re Reading a Preview Become a Clinical Tree membership for Full…
Definition Morphologically distinct variant of invasive urothelial carcinoma Clinical features Epidemiology Incidence <1% to 2.2% of all invasive urothelial carcinomas Most common in the sixth decade (range, 45 to 91 years) Males more frequently affected (male-to-female ratio, 5:1) You’re Reading…