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"MALIGNANT FIBROUS HISTIOCYTOMA (MFH)"

“ Also known as pleomorphic sarcoma, this is the most common primary malignant soft tissue tumour of adulthood (>40 years of age). It is...

Also known as pleomorphic sarcoma, this is the most common primary malignant soft tissue tumour of adulthood (>40 years of age). It is aggressive and presents with an enlarging, painless intramuscular thigh mass. Treatment is with excision. MFH may metastasise to the lungs.
MRI

•  Intramuscular mass with non-specific signal characteristics.
•  Foci of calcification are low signal on T1 and T2.
•  Foci of haemorrhage (may be high signal on T1) and necrosis (high signal on T2).
 Peripheral/nodular enhancement with contrast.

NUCLEAR MEDICINE

•  Bone scans are sensitive for detecting bone metastases.