Abstract
고려대학교 의과대학 정형외과학교실, 해부병리과교실* 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.
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