転移性頭蓋骨腫瘍の3例

Metastatic Calvarial Tumor : report of 3 cases

I．はじめに

　近年の悪性腫瘍に対する治療技術の進歩に伴い転移性骨腫瘍は増加しているが，脊椎，肋骨，長管骨，骨盤などに比べると頭蓋骨転移の頻度は低い^16）．常にその存在を意識しておけば診断は困難ではないが，原発巣より転移巣が先に見つかることも多いので^10,13,15），全体の診断治療計画をたてるのは容易ではない．著者らは肺，肝臓，腎臓を原発とした転移性頭蓋骨腫瘍の3例を経験し，診断治療上の問題について検討を加える．

We report 3 cases of calvarial tumor metastasized from the following malignancies: squamous cell car-cinoma of the lung, hepatocellular carcinoma, and clear cell carcinoma of the kidney. All three patients pre-sented with a painful mass as the initial symptom. Although each tumor was successfully extirpated, out-come was not satisfactory because of the malignant nature of the primary sources.

The main purpose of treatment of metastatic calvarial tumors was thought to be relief of pain andcosmetic reasons. Metastatic calvarial tumors may reach considerable size as reported here. We stressedthat meticulous care should he paid to repair of the dura and reconstruction of subcutaneous soft tissues,since scalp necrosis or cerebrospinal fluid retention may occur following preoperative embolization of feed-ing arteries and extensive removal of subcutaneous tissues invaded by tumor.