Chondroblastoma in a Distal Phalanx of the Great Toe: A Case Report / 대한정형외과학회잡지

ABSTRACT

A chondroblastoma is a relatively rare benign bone tumor that is typically encountered in the epiphysis. The authors describe a case of a chondroblastoma arising in the great toe. An 82-year-old woman presented with pain over her left great toe with a 1 year duration. The radiographs showed an expansile osteolytic lesion with cortical thinning and coarse trabeculation that replaced the distal phalanx of the left great toe. An incisional biopsy and curettage were performed. Histologically, the tumor consisted of uniform, round to polygonal cells with clear to slightly eosinophilic cytoplasm and round to ovoid nuclei, mimicking chondroblasts, intermingled with osteoclast-like giant cells.