paratesticular fibrous pseudotumor

Paratesticular fibrous pseudotumor is a rare intrascrotal fibrous proliferation for which numerous synonyms have been proposed.

Paratesticular fibrous pseudotumor looks histologically distinct from fibromatosis and inflammatory myofibroblastic tumor (IMT) seen in other organs, an assertion supported by negative stains for beta-catenin and ALK-1, respectively.

References

 Paratesticular Fibrous Pseudotumor: A Morphologic and Immunohistochemical Study of 13 Cases. Miyamoto H, Montgomery EA, Epstein JI. Am J Surg Pathol. 2010 Mar 4. PMID: 20216379