Malignant fibrous histiocytoma (MFH) is the most common soft tissue malignant tumour in late adult life. MFH has been mentioned to have avid uptake of 67Ga citrate, and only 38% is uptake of 99mTc-MDP, although few cases of MFH have been reported. We present the case of a 73 years old male patient with MFH. In the blood pool phase of the bone scintigraphy, MFH was presented as an intense hyperactive lesion. In the late phase the tumor is one of the few MFH described to have avid uptake for 99mTc-MDP. In this work we also review some cases of MFH described and the different techniques used in the diagnosis and follow-up of these tumours.
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