Fibrous pseudotumour of the scrotum
Last revised by Jeremy Jones on 20 Sep 2021
Citation, DOI, disclosures and article data
Citation:
Weerakkody Y, Bell D, Morgan M, et al. Fibrous pseudotumour of the scrotum. Reference article, Radiopaedia.org (Accessed on 18 Apr 2024) https://doi.org/10.53347/rID-31916
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rID:
31916
Article created:
5 Nov 2014,
Yuranga Weerakkody ◉
Disclosures:
At the time the article was created Yuranga Weerakkody had no recorded disclosures.
View Yuranga Weerakkody's current disclosures
Last revised:
20 Sep 2021,
Jeremy Jones ◉
Disclosures:
At the time the article was last revised Jeremy Jones had no recorded disclosures.
View Jeremy Jones's current disclosures
Revisions:
11 times, by
9 contributors -
see full revision history and disclosures
Systems:
Tags:
Synonyms:
- Fibrous pseudotumour of scrotum
- Fibrous pseudotumor of the scrotum
- Fibrous pseudotumor of scrotum
- Nodular fibropseudotumour
- Nodular fibropseudotumor
- Scrotal mouse
- Nodular periorhitis
- Fibrous pseudotumour (scrotum)
Fibrous pseudotumour of the scrotum is a relatively rare, non-neoplastic extratesticular non-epididymal lesion.
On this page:
Epidemiology
It affects any age. Although rare, it is considered the third most common extra testicular mass after a scrotal lipoma and an epididymal adenomatoid tumour.
Risk factors
Certain factors increases the risk of fibrous pseudotumour of the scrotum 5:
- inflammatory hydrocele
- trauma
- surgery
- infection
Pathology
It is characterised by usually nodular, probably reactive proliferation of fibrous tissue and inflammatory cells. It occurs due to prior inflammation, infection, or trauma.
Location
It most often involves the tunica vaginalis.
Radiographic features
Ultrasound
Sonographic appearances can be widely variable. They are typically seen as one or more solid paratesticular or tunica nodules or masses with variable echogenicity.
MRI
- 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
Differential diagnosis
Clinically, it can mimic testicular malignancy.
See also
References
- 1. Germaine P, Simerman LP. Fibrous pseudotumor of the scrotum. J Ultrasound Med. 2007;26 (1): 133-8. J Ultrasound Med (full text) - Pubmed citation
- 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
- 3. Khallouk A, Ahallal Y, Tazi E et-al. Benign paratesticular fibrous pseudotumor with malignant clinical features. Rev Urol. 2012;13 (4): e203-5. Free text at pubmed - Pubmed citation
- 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
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