頭蓋骨原発悪性リンパ腫の1例

A Case of Malignant Lymphoma of the Cranial Vault

Ⅰ．はじめに

　頭蓋骨原発の悪性リンパ腫は稀である．今回，頭皮下腫瘤を主訴とした頭蓋骨原発の悪性リンパ腫の手術を施行した．これは，当初は頭蓋骨外腫瘤であったが，頭蓋骨内外へ急速に増大した．この腫瘍の伸展形式を含め，他の報告例と共に検討し考察する．

We report a rare case of malignant lymphopma of the cranial vault. A 71-year-old woman developed an asympto-matic subcutaneous mass on the scalp. The skin over the lesion was normal and the mass was firm and attached to the skull. Neurological examination revealed no abnormalities. Plain CT scans showed a high-density lesion that was widely attached to the skull and the surface of the skull was slightly irregular. About 25 days later, enhanced showed that the mass was well enhanced and extended into the cranium, and decalcification of the skull adjacent to the lesion had progressed.