Fibrous pseudotumor of the scrotum
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Fibrous pseudotumor of the scrotum is a relatively rare, non-neoplastic extratesticular non-epididymal lesion.
Certain factors increases the risk of fibrous pseudotumor of the scrotum 5:
- inflammatory hydrocele
It is characterized by usually nodular, probably reactive proliferation of fibrous tissue and inflammatory cells. It occurs due to prior inflammation, infection, or trauma.
It most often involves the tunica vaginalis.
Sonographic appearances can be widely variable. They are typically seen as one or more solid paratesticular or tunica nodules or masses with variable echogenicity.
- T1: uniformly low signal intensity: due to the presence of fibrosis 4
- T2: uniformly low signal intensity: due to the presence of fibrosis 4
- T1 (C+) Gd: generally show slow but persistent enhancement, as is typical of fibrous tissue, although enhancement can be variable 4
Clinically, it can mimic testicular malignancy.
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- 2. Yang DM, Kim HC, Lim SJ. Sonographic findings of fibrous pseudotumor of the tunica vaginalis. J Clin Ultrasound. 2012;40 (4): 252-4. doi:10.1002/jcu.20888 - Pubmed citation
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- 4. Cassidy FH, Ishioka KM, McMahon CJ et-al. MR imaging of scrotal tumors and pseudotumors. Radiographics. 2010;30 (3): 665-83. Radiographics (full text) - doi:10.1148/rg.303095049 - Pubmed citation
- 5. Kodama H, Hatakeyama S, Matsumoto T, Tanaka T, Horiguchi H, Kubota Y, Yamamoto H, Imai A, Yoneyama T, Hashimoto Y, Koie T, Ohyama C. A Case of Fibrous Pseudotumor in the Scrotum: Challenge for Diagnosis and Testicular Preservation. (2018) Case reports in urology. 2018: 6904827. doi:10.1155/2018/6904827 - Pubmed