[Soft tissue tumor near the joint: hibernoma].

[liposarcoma]

Joint associated tumors must undergo histological analysis , since not only inflammatory , but also benign and malign tumors exist in this location . We report a well circumscribed tumor , located in the elbow that histologically turned out to be a hibernoma . Complete surgical excision is the therapy of choice and recurrences are rare . To rule out liposarcoma with hibernoma like changes , fluorescence in -situ hybridisation has been performed and showed no MDM-2 amplification . Hibernomas are tumors of brown adipose tissue that may be localized next to joints .