Primary epididymis malignant triton tumor: case report and review of the literatureReport as inadecuate

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European Journal of Medical Research

, 20:79

First Online: 21 September 2015Received: 24 November 2014Accepted: 07 September 2015DOI: 10.1186-s40001-015-0172-y

Cite this article as: Gao, L., Song, H., Mu, K. et al. Eur J Med Res 2015 20: 79. doi:10.1186-s40001-015-0172-y


BackgroundMalignant 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.

Case presentationIn 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 × 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.

KeywordsMalignant triton tumor Epididymis Pathology Treatment  Download fulltext PDF

Author: Lijian Gao - Hualin Song - Kun Mu - Jiaxin Wang - Baoyin Guo - Benkang Shi - Gang Li


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