Intramuscular Myxoma
Clinical
- Age 25-89 years
- Size 1.5-20 cm, rare >10 cm
- Proximal limbs and adjacent trunk
- Involves muscle, may or not be confined to it
- Rarely associated with fibrous dysplasia (Mazabraud syndrome)
- Gs(alpha) mutation of fibrous dysplasia identified in 5/6 myxomas tested
- Seen in cases with and without associated fibrous dysplasia
- Minor radiographic bone abnormalities reported in 14/16 cases studied
- No recurrences if completely excised
- No metastases
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