Tag Brian D. Robinson MD

Spermatocele

Definition Cystic dilatation of an efferent ductule, proximal rete testis, or head of the epididymis Clinical features You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member.…

Teratoma, prepubertal-type, dermoid cyst

Definition A form of prepubertal-type teratoma composed of elements that replicate the structure of skin in an organoid arrangement No association with germ cell neoplasia in situ, dysgenetic gonads, or chromosome 12p amplification Clinical features Epidemiology Rare (less than 1%…

Germ cell aplasia, sertoli cell-only syndrome

Definition Azoospermia with seminiferous tubules showing complete absence of germ cells and lined by Sertoli cells only Clinical features You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are…

Ureteral urothelial carcinoma and staging

Definition Urothelial carcinoma arising primarily in the ureter Clinical features You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here

Villous adenoma

Definition Benign glandular neoplasm of the bladder, typically with a papillary–villiform growth pattern, that is histologically indistinguishable from similar neoplasms of the colorectum Clinical features You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited…

Reactive urothelial atypia

Definition Morphological changes in urothelial cells, predominantly nuclear, seen in response to a stimulus Clinical features You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log…

Ectopic prostate tissue

Definition Benign prostatic glands forming a polypoid or papillary mass within the bladder Clinical features You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in…

Squamous metaplasia

Definition Metaplastic process in which the normal urothelium is replaced by either keratinizing or nonkeratinizing stratified squamous epithelium Clinical features Epidemiology More common in women than men Typically affects older adults Often a response to urothelial injury (e.g., chronic infection,…

Simple atrophy

Definition Small, benign glands arranged in nests with reduced cytoplasmic volume in luminal epithelial cells. Simple atrophy maintains relatively normal glandular spacing and reduced luminal diameter. Clinical features Epidemiology Typically affects the elderly with the prevalence and extent of gland…

Post-biopsy granuloma

Definition Granulomatous inflammatory response seen after transurethral resection or needle core biopsy of the prostate gland. Clinical features Epidemiology Seen in men undergoing repeat transurethral resection (TUR). Rarely can be seen after prostate needle biopsy. Less than 1% of benign…