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(Created page with "'''Undescended testis''', also '''cryptorchidism''', is when the testis fails to descend into the scrotum - from it embryological origin in the abdomen. ==See also==...") |
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'''Undescended testis''', also '''cryptorchidism''', is when the [[testis]] fails to descend into the [[scrotum]] - from it embryological origin in the abdomen. | '''Undescended testis''', also '''cryptorchidism''', is when the [[testis]] fails to descend into the [[scrotum]] - from it embryological origin in the abdomen. | ||
==Microscopic== | |||
Four patterns are described by Nistal ''et al.'':<ref>{{cite journal |authors=Nistal M, Paniagua R, Díez-Pardo JA |title=Histologic classification of undescended testes |journal=Hum Pathol |volume=11 |issue=6 |pages=666–74 |date=November 1980 |pmid=6108912 |doi=10.1016/s0046-8177(80)80078-5 |url=}}</ref> | |||
*Type I cases testes with minimal lesions. | |||
*Type II cases marked germinal hypoplasia as well as slight or marked tubular hypoplasia. | |||
*Type III cases diffuse tubular hypoplasia. | |||
*Type IV diffuse Sertoli cell hyperplasia. | |||
==See also== | ==See also== | ||