What are undifferentiated pleomorphic sarcomas?

Also known as: UPS, malignant fibrous histiocytoma

An undifferentiated pleomorphic sarcoma is a form of cancer that develops in the soft tissue of the body. It most often grows in the arms and legs but can also form in the part of the abdomen known as the retroperitoneum. It can also form in bones at times. This type of cancer was formerly known as malignant fibrous histiocytoma.

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Reviewed by: Maggie Fader, MD

This page was last updated on: 1/29/2019 3:21:13 PM