―症例―頭頂骨に発生したBenign osteoblastomaの1例

Benign Osteobiastoma of the Parietal Bones

I．はじめに

　benign osteoblastomaは，主に脊柱や長管骨に発生する比較的稀な骨腫瘍で，頭蓋骨に発生することは極めて少ない．今回われわれは9歳男児の頭頂骨に発生したbenign osteoblastomaを経験したので，その臨床像，放射線学的および組織学的特徴を検討し，文献的考察を加え報告する．

Benign osteoblastoma accounts for less than 1% of the primary bone tumors and the calvarial lesion is extremely rare. There are only 12 reported cases in the literature as far as we could collect. We have presented a case of benign osteoblastoma originated from the parietal bone. This 9-year-old boy struck his head on the parietal region and noticed the bulging at the same site. A month later he visited to Fukuoka University Hospital because of persistent bulging of the same site. Neurological examinations were normal.