仙骨前領域に発生した骨髄脂肪腫の1例

A case of presacral myelolipoma

今回我々は，当院整形外科で膝関節の手術を予定していたが，術前に撮影されたCTで偶発的に骨盤内の仙骨前方に腫瘤を認め，脂肪肉腫が考えられたため腫瘍摘出術が施行された結果，病理所見から骨髄脂肪腫の診断となった症例を経験した。骨髄脂肪腫としては比較的まれな仙骨前領域に発生した症例であることから，若干の文献的考察を加えて報告する。

We present a case of a relatively rare myelolipoma occurring in the presacral region. The patient was a woman in her 40s. It was discovered incidentally and she had no subjective symptoms. Contrast-enhanced CT and MRI revealed a fatty mass with mild contrast. Imaging studies could not rule out the possibility of liposarcoma, which is malignant, and tumor resection was performed. It was difficult to diagnose myelolipoma preoperatively. Surgical excision resulted in a diagnosis of myelolipoma.