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Primary epididymis malignant triton tumor: case report and review of the literature

Malignant triton tumor (MTT) is a rare and histological complexity characterized by a mixture of peripheral nerve sheath tumors and with rhabdomyoblastic differentiation. It follows a particularly malignant course. In the present study, we report the first MTT of epididymis. The patient is a 22-year...

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Bibliographic Details
Published in:European journal of medical research 2015-09, Vol.20 (1), p.79-79, Article 79
Main Authors: Gao, Lijian, Song, Hualin, Mu, Kun, Wang, Jiaxin, Guo, Baoyin, Shi, Benkang, Li, Gang
Format: Article
Language:English
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Summary:Malignant triton tumor (MTT) is a rare and histological complexity characterized by a mixture of peripheral nerve sheath tumors and with rhabdomyoblastic differentiation. It follows a particularly malignant course. In the present study, we report the first MTT of epididymis. The patient is a 22-year-old male presented with swelling in the left scrotum over a 2-month period. He did not have the history or symptoms of neurofibromatosis type 1. A mass measured about 3 cm Ă— 4 cm was found in the left epididymis by ultrasound and CT scan. It was diagnosed as epididymis tumor and underwent exploration; intraoperative frozen section was diagnosed malignant tumor and treated with radical orchidoepididymectomy. The pathological report was malignant triton tumor. Despite taken high-dose radiation therapy and followed by chemotherapy for four cycles, he was died of progressive disease with multiple metastases 26 months after surgery. The clinic pathologic characteristics and optimal treatment strategy are reviewed.
ISSN:2047-783X
0949-2321
2047-783X
DOI:10.1186/s40001-015-0172-y