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Can Urol Assoc J. 2010 Aug;4(4):E112-5.

Primary testicular mucinous neoplasms: case report and literature review.

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Department of Obstetrics, Gynecology and Reproductive Sciences, University of Manitoba, Winnipeg, MB;


Testicular epithelial mucinous tumours are an extremely rare, but interesting form of testicular neoplasm. We reviewed the medical literature using PubMed search terms: testis, mucinous cystadenoma, mucinous cystadenocarcinoma, neoplasms and testicular neoplasms. We describe a case from our institution and provide a review of the literature. Only 11 previously reported cases of mucinous testicular tumours have been reported in the English literature. The natural history of these tumours is poorly understood, due to their rarity, but it appears that, like their ovarian counterparts, they have an excellent prognosis. Exclusion of metastasis is an important point for the urologist when encountering a mucinous testicular tumour, as metastatic cystic lesions may mimic a primary mucinous tumour. We describe a case of ossified testicular mucinous tumour of low malignant potential. Such tumours are common in the ovary, but arise very rarely in the testicle. The clinical and histological features of this tumour are presented, and previously reported cases are reviewed to highlight important clinical features.

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