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Print Date: May 26, 2013, 1:32 am
Titleadenomatoid tumor of the scrotum
TextAs in real estate as well as radiology, location of a lesion is of prime importance. In evaluating an intrascrotal lesion/mass, one must decide whether the abnormality is intratesticular or extratesticular/paratesticular, as the differential diagnosis is quite different for these locations.

Extratesticular mass differential includes: inguinal hernia; inflammatory mass such as infection, sarcoidosis; benign neoplastic processes such as adenomatoid tumor, epidermoid inclusion cyst; malignant processes such as soft tissue sarcomas, mesothelioma of the tunica, lymphoma, and metastatic disease.

This case is a surgically proven adenomatoid tumor. This is one of the more common extratesticular lesions. It is a benign, slow-growing mesothelial neoplasm, presenting usually during the second to fourth decade of life. Usually it is a well-defined, extratesticular, iso- to hyper-echoic (relative to testis) solid mass. Usually they are within the epididymis, but rarely can be located in the tunica albuginea (as in this case) or within the spermatic cord.
References:1. Dahnert, W. Radiology Review Manual, 5/e. Lippincott Williams & Wilkins, 2003.
2. Williams SB, Han M, Jones R, Andrawis R. Adenomatoid tumor of the testes. Urology. 2004 Apr;63(4):779-81.
ContributorPil Kang (Uniformed Services University)
Peer ReviewerChristopher J Bennett (National Capital Consortium)
Record Number : 6939
Created2005-12-20 10:52:44-05
Modified2006-03-19 18:53:49.550622-05
Category:Neoplasm, benign
Location:Genitourinary
Sublocation:Testicle
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