Tumors of Paratesticular Structures

Abstract

Several tumors that have little to do with each other are grouped under this heading, except for the preferred location in the epididymis and tunica vaginalis. Two examples of adenomatoid tumor are included: one of the epididymis, another one an intratesticular tumor; two cystadenomas of the epididymis, one papillary, another one solid; one primary adenocarcinoma of the epididymis; one tumor of adrenal remnants in the epididymis; one malignant mesothelioma of the tunica vaginalis and a cystic lymphangioma of the epididymis. In most of them the architectural pattern is diagnostic, but in others, as the solid pattern epididymis cystadenoma, primary adenocarcinoma of the epididymis and mesothelioma of the tunica vaginalis, the help of immunohistochemistry may be necessary.