Shimada K, Shimada A, Yamamoto H, Tasaka Y, Hayashi A
Gan No Rinsho. 1985 Sep;31(11):1427-32.
A case of multiple extracranial meningiomas, occurring in the orbita, both ethmoidal sinuses and the frontal sinus of a 60-year-old man, is reported. These meningiomas were histologically similar and diagnosed as transitional type benign meningioma. On whole body examinations including CT scans, we could not find any other primary foci. There fore, these meningiomas were thought to be a case of multiple extracranial meningiomas occurring at the same time. As for multiple extracranial meningiomas, this is the first case report in Japan. In general, extracranial meningiomas have been thought to be derived from ectopic arachnoid cell rests. Our case will be extremely important in the light of the histogenesis of extracranial meningiomas.
报告了一例发生在一名60岁男性眼眶、双侧筛窦和额窦的多发性颅外脑膜瘤。这些脑膜瘤在组织学上相似，诊断为过渡型良性脑膜瘤。在包括CT扫描在内的全身检查中，我们未发现任何其他原发灶。因此，这些脑膜瘤被认为是同时发生的多发性颅外脑膜瘤病例。至于多发性颅外脑膜瘤，这是日本的首例病例报告。一般认为，颅外脑膜瘤起源于异位蛛网膜细胞残余。鉴于颅外脑膜瘤的组织发生，我们的病例将极其重要。
