Abstract
We report a chondromyxoid fibroma of the proximal phalanx of the left third toe in a 35 year old woman, a rare site for this tumor. The radiological appearance of a trabeculated lytic lesion with sclerotic margins and soft tissue extension raised the possibility of other entities such as intraosseous epidermoid cyst, aneurysmal bone cyst, chondroblastoma, osteoid osteoma and chondrosarcoma as well as infections like pyogenic, tuberculous and leprous dactylitis. However the typical microscopic picture of lobules of cartilage separated by fibrocellular tissue and scattered osteoclasts confirmed the diagnosis. The tumor was successfully treated by curettage and bone grafting using a dorsal and plantar 2 incision technique and has no recurrence at 4 year follow up. In this article we present our experience with this case and discuss the differential diagnosis of a solitary lytic lesion in the phalanges of the toes.
Highlights
We report a chondromyxoid fibroma of the proximal phalanx of the left third toe in a 35 year old woman, a rare site for this tumor
A needle biopsy was reported as benign cartilaginous tumor
Chondromyxoid fibroma (CMF) is a rare neoplasm constituting less than 1% of all bone tumors.[1,2]
Summary
We report a chondromyxoid fibroma of the proximal phalanx of the left third toe in a 35 year old woman, a rare site for this tumor. Radiological examination revealed a trabeculated lytic lesion with sclerotic margins involving half the length of the proximal phalanx of the third toe. Of Orthopaedics, Unit 2 Christian Medical College Ida Scudder Road,Vellore 632 004.
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