急性白血病に先行したGranulocytic sarcoma（Chloroma）の1例

A Case of Granulocytic Sarcoma (Chloroma) preceding Acute Leukemia

I．はじめに

　granulocytic sarcoma（chloroma）は骨灘（単球性）白血病に合併する稀な腫瘍であり，特に脳神経外科領域では，その報告^{8,12,13,21）}は極めて少ない．

　今回，われわれはgranulocytic sarcomaによる眼球突出にて発症し，約1ヵ月後に急性骨髄性白血病の出現を認めた稀な1例を経験したので若干の考察を加え報告する．

A 2-year-old boy developed proptosis of the right eye in May 1982.

He was admitted to Isawa Hospital on June 9. Physical examination revealed a well developed child with slight proptosis of the right eye and swelling of the right temple.

Routine serologic and blood examination revealed no abnormality except LDH, ALP and LAP.

CT scan showed high density area in the anterior part of the right temporal lobe and lateral wall of the right orbit.

He underwent open-biopsy of this tumor on July 15. Eosinophilic granuloma was suspected, but definite diagnosis was not made.