Adenomatoid tumour of the scrotum: gross pathology and histology

Case contributed by Dr Andrew Ryan

Presentation

Vague clinical mass right testis ?tumour. Imaging equivocal.

Patient Data

Age: 30 years
Gender: Male

Macro - A relatively uniform, firm, white nodule, 9 x 8 x 7mm, arising from the visceral layer of the tunica vaginalis and protruding into the testis. The adjacent normal tan testicular parenchyma is present for comparison. 

Micro (low power) - Section of tumour (right) with adjacent normal testis (left - rounded spaces are seminiferous tubules). The tumour can be seen arising from the thick visceral layer of tunica vaginalis and is stroma rich, accounting for the firmness clinically.

Micro (high power) - The tumour is composed of rounded to elongate epithelial lined spaces. The spaces have some resemblance to vessels but the lining cells are positive for epithelial and mesothelial markers on immunohistochemistry. The surrounding stroma is dense.

Case Discussion

This is an example of an adenomatoid tumour arising from the visceral layer of the tunica vaginalis and bulging into the testis. 

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Case information

rID: 16175
Published: 27th Dec 2011
Last edited: 26th Mar 2018
Inclusion in quiz mode: Excluded

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