Otolaryngology and head and neck surgery
Benign chondroblastoma of the temporal bone.
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概要
Benign chondroblastoma is a rare tumor in the temporal bone. It occurs preponderantly in middle-aged men as a mass in the postero-superior region of the ear canal and is accompanied by hearing loss. On pathologic examination, giant cells and focal regions of chondroid differentiation are noted. After the extent of the tumor has been determined, the treatment is surgical removal. Preoperative irradiation may be helpful. Long-term follow-up is essential.