前頭骨Aneurysmal bone cystの1例

Aneurysmal Bone Cyst of the Frontal Bone

Ⅰ．緒言

　Aneurysmal bone cystの好発部位は，長管骨および脊椎骨であり，頭蓋骨での発生ははなはだ稀である．われわれは，左前頭骨に発生したAneurysmal bone cystの1例を経験したので報告する．

A six year-old boy. Ile complained of a swelling of the left forehead since October of 1971, the region of his upper eyelid has then been gradually swollen. He was admitted to our institute on the 24th of February, 1973, without the past history of head trauma. We found that the swollen region had a diameter of about 4 centimeters covered from the left upper eyelid to the forehead with a slight tenderness on pressure. We had no neurological findings.