Meningeal Carcinomatosis-Manifestations of CT and MRI

腦膜轉移之磁振掃描與電腦斷層掃描之表徵

蔡宗佳(Tsung-Chia Tsai) ； 周敏雄(Min-Shon Chou) ； 陳巧雲(Chau-Yun Chen) ； 劉金昌(Gin-Chung Liu) ； 洪純隆(Shen-Long Howng)

《中華放射線醫學雜誌》 22卷4期 (1997/08) Pp. 153-158

摘要

分析28例的腦膜轉移中，我們嶺現磁振造影掃描之Gd-DTPA對比顯影像最能提供診斷資料，其重要表徵依序為：1)腦膜的顯影加強，2)腦室或株網膜下腔的結塊形成，3)腦溝或腦回的顯影加，4)腦室擴大，5)腦室內膜顯影加強，6)顱神經根之肥厚，由文獻之回顧，原發性腦瘤所引起之脊髓蛛網膜下腔之轉移及由脊髓原發性膠質細胞所引起之顱內蛛網膜下腔，腦室內之轉移甚為罕見。本文中，有4例原發性腦瘤引起脊髓蛛網膜下腔轉移，有一例脊髓原發性膠質細胞瘤引發，顱內蛛網膜下腔轉移在此一併討論。

關鍵字

腦脊髓膜，電腦斷層 ； 腦脊髓膜，磁振造影 ； 腦脊髓膜，腫瘤

並列摘要

Twenty-eight cases with leptomeningeal metastasis were analyzed and was found to be Gd-DTPA enhanced MR imaging the most useful tool for making the diagnosis. The important manifestations in order of frequency were 1) leptomeningeal enhancement; 2) mass or nodule formation; 3) sulcal-gyral enhancement; 4) communicating hydrocephalus; 5) ependymal enhancement; 6) nerve root thickening. A review of the literature has shown that intracranial leptomeningeal metastasis from spinal cord astrocytoma or spinal seeding from intracranial tumor are very rare. In our series, 4 cases with primary brain tumors developed spinal subrarachnoid involvement. Also reviewed is 1 case with thoracic cord astrocytoma which developed multiple intracranial leptomeningeal metastasis.

並列關鍵字

Meninges, CT ； Meninges, MR ； Meninges, Neoplasms