Özet:

Lipomas which are the most common tumors of the soft tissue often accompanied by fibrous tissue, blood vessels, smooth muscle, myxoid areas; and rarely include bone marrow, chondroid nodules and bone formation areas. Lipomas containing both bone and chondroid areas are extremely rare and have been reported most commonly in head, neck and intraoral areas. 54 years old female patient has a 7 cm. diameter subcutaneous mass in the forearm which was discovered five years ago. USG and MR findings have indicated lipoma. Radiologic examination, which has been performed due to the recent pain and hardening mass, revealed an atypical lipoma- low grade liposarcom probability. As the spindle cell areas in the fatty tissue have been seen in the tru-cut biopsy, total excision has been applied for differential diagnosis. The histopathological examination has reported osteochondrolipoma. Osteochondrolipomas have been accepted as a variant of conventional lipomas as a result of the cytogenetic studies. It might be difficult to diagnose rarely seen osteochondrolipomas in the tru-cut or small biopsy specimens. Both clinically, radiologically and histopathologically differential diagnosis might be difficult. This case is the 6th OCL case which has been reported in the literature and the first case in the forearm area.

Anahtar Kelimeler: