- 期刊
侵犯腦膜與腦室的轉移－電腦斷掃描之探討
Metastasis Involving the Leptomeninges and Ventricles of the Brain-CT Evaluation
摘要
當腫瘤之轉移侵犯於腦膜、腦室時，經向電腦斷層掃描之評估，能發現、治療與改變癌症病人的處理方針。在20例經向腦脊髓液轉移的病人中，其重要的電腦斷層掃描委現依序為。（1）腫塊，結節之轉移於腦室或蛛網膜下腔；（2）室管膜之顯影加強了；（3）腦溝、腦回或腦池之顯影加強；（4）水腦；（5）天幕、大腦鐮之顯影加強。另8例是血行而轉移終脈絡叢或毗鄰游腦室之組織而該轉移瘤之大部份突入腦室中，此腫塊結節可清楚地以注射顯影劑後之電腦斷層掃描予以清楚地描繪出來。所侵犯的腦室依序為側腦室、第三腦室及第四腦室。
關鍵字
無資料並列摘要
The diagnosis of leptomeningeal or ventricular metastasis by cranial computerized tomography (CT) contributes to earlier treatment and sometimes alters the management of patients with intra- or extra-cranial malignancy. In 20 cases whose metastasis were spreaded via CSF seeding, the abnormal CT findings were 1) mass or nodule in the ventricles or subarachnoid space, 2) ependymal, subependymal enhancement, 3) sulcal, gyral or cisternal enhance- ment, 4) hydrocephalus not related to the obstruction of primary tumor, 5) falx or tentorial enhancement. In another 8 cases, the metastasis developed through hematogeneous. spreading to the choroid plexus or paraventricular parenchyma. The mass or nodule within the ventricles could be well indentified with enhanced CT scan. The involved ventricles, in order of frequency, were lateral, 3rd, and 4th ventricles in our series.