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軸椎に発生した骨巨細胞腫(GCT)に対して,下顎骨縦割アプローチによる全摘術を行い,良好な結果を得たので報告する.症例は23歳の女性で,1年来の頚部痛を主訴に近医を受診し,X線,MRIで軸椎腫瘍を指摘され当科に入院となった.経口的生検術による病理組織検査でGCTと診断された.術前に腫瘍塞栓術を施行し,後方から腫瘍摘出術と固定術を施行した.2期的に下顎骨縦割アプローチにより腫瘍摘出術と自家骨移植を行った.術後に移植骨が前方へ脱転を来したため,移植骨を除去し後方に骨移植を追加した.強固な骨癒合が得られ,術後2年の段階で腫瘍の再発を認めていない.
We report a rare case of giant-cell tumor of axis. A 23-year-old woman presented with severe pain in the neck that persisted for a year. Radiographs and computed tomography (CT) scans showed tumors involving and destroying the body and arch of the axis.
A pathological specimen obtained by transoral biopsy revealed giant-cell tumor with multinuclear giant cells and mononuclear stromal cells. After embolization of the feeding arteries, the tumor was totally resected through combined anterior mandible-splitting approach followed by bone grafting through the posterior approach. However, 3 months after surgery, the graft dislodged, which required graft retrieval and posterior fusion reinforcement with an additional bone graft. At the 2-year follow-up, complete fusion without tumor recurrence was achieved.
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