Pleomorphic undifferentiated sarcoma

Case contributed by Dr Fazel Rahman Faizi


Left thigh swelling

Patient Data

Age: 55 years
Gender: Female

A large, well-defined, abnormal signal intensity mass lesion in the medial compartment of the left thigh, returning low signal intensity on T1, heterogeneous high signal intensity on T2/PD sequences with heterogeneous enhancement on post contrast image. No involvement of underlying bony structures.

This is a biopsy proven case of pleomorphic undifferentiated sarcoma.

Case Discussion

Pleomorphic undifferentiated sarcoma, previously known as malignant fibrous histiocytosis (MFH) or undifferentiated spindle cell sarcoma (USCS), is a term that is used for the classification of sarcomas that cannot be assigned a cell of origin, whether by histological, immunohistochemical, ultrastructural, or molecular criteria 1.

Dr. Farhad Farzam has also contributed to this case.

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Case information

rID: 66271
Published: 19th Feb 2019
Last edited: 14th Aug 2019
Inclusion in quiz mode: Included

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