Undescended testis

From Libre Pathology
Revision as of 15:14, 28 May 2026 by Michael (talk | contribs)
Jump to navigation Jump to search

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.:[1]

  • 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

  1. ↑ Nistal M, Paniagua R, Díez-Pardo JA (November 1980). "Histologic classification of undescended testes". Hum Pathol 11 (6): 666–74. doi:10.1016/s0046-8177(80)80078-5. PMID 6108912.
Retrieved from "https://librepathology.org/w/index.php?title=Undescended_testis&oldid=53794"