Presentation
Recurrence of the known leg mass.
Patient Data
Age: 65
Gender: Male
From the case:
Malignant fibrous histiocytoma - leg
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MRI demonstrated a well-circumscribed soft tissue mass measuring about 40*65*77mm in the anterior compartment of the right leg which is hypointense on T1WI and hyperintense on T2W sequences. There is no evidence of cortical invasion.
Case Discussion
He underwent surgery one year ago and the mass was resected and pathology confirmed malignant fibrous histiocytoma, storiforme-pleomorphic type.
Microscopic:
IHC study:
- Cytokeratin: -
- Vimentin: strongly positive
- Desmin: -
- MYO-D1: -
- S-100: -
- Ki67: positive (about 70%-75% of tumor cells)
- CD68: positive
- CD34: -
The patient was referred to us, because of repeated local recurrence and severe pain over an 8-month period.
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