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題名 | Intracranial Ganglioglioma: CT and MRI Findings=電腦斷層及磁振造影在顱內神經軸神經膠質瘤的發現 |
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作者 | 羅兆寶; 鄧木火; 陳行素; 凌憬峰; 郭萬祐; 藍功堯; 張遵; | 書刊名 | The Kaohsiung Journal of Medical Sciences |
卷期 | 13:8 1997.08[民86.08] |
頁次 | 頁467-474 |
分類號 | 415.812 |
關鍵詞 | 電腦斷層; 磁振造影; 顱內神經軸; 神經膠質瘤; Brain ganglioglioma; Computerized tomography; Magnetic resonance imaging; |
語文 | 英文(English) |
中文摘要 | 在過去16年間,我們收集了13例經病理證實為神經軸神經膠質瘤的病例,並分 析其電腦斷層及磁振造影之特色。13例病人於術前均接受電腦斷層檢查,4例接受磁振造影 檢查。結果發現6例腫瘤是以囊狀為主顯示但於腫瘤週邊有局部顯影劑加強現象(6/13, 48%);7例腫瘤是以實體表現合併不同程度顯影劑加強現象。13例腫瘤中,9例含有鈣化 (9/13,69%)。顳葉是神經軸神經膠質瘤最好發部位共有6例(43%);4例位於後顱窩;2例於 額葉:另1例大腫瘤佔據額顳葉及基底核。整體而言,神經軸神經膠質瘤在電腦斷層或磁振 造影可以純囊狀,囊狀腫瘤合併局部顯影劑加強現象,實體或以瀰漫性分佈於顱內或蛛網膜 下腔來表現。 神經軸神經膠質瘤在電腦斷層及磁振造影之表徵,並不具有典型特色。欲正確診斷仍需 依賴切片檢查。但是放射科醫生發現病人有較長之神經學症狀,且於電腦斷層或磁振造影可 見顱內囊狀鈣化腫瘤合併局部顯影劑加強現象或是顱內實體鈣化腫瘤無腫瘤出血或腫瘤週邊 水腫,特別是腫瘤位於顳葉,此時應把神經軸神經膠質瘤列入鑑別診斷。 |
英文摘要 | Thirteen cases or pathologically proved intracranial gangliogliomas were reviewed in order to define the characteristic computed tomography (CT) and magnetic resonance image (MRI) features. All patients were evaluated with CT and four of them were studied by MRI. Six tumors were cystic dominant mixed masses with remarkable focal contrast enhancement (6/13, 46%); and seven were solid in nature with variable contrast enhancement (7/13, 54%). Nine of them contained calcification (9/13, 69%). The temporal lobe was affected in six patients (6/13, 46%); the posterior fossa in four patients; the frontal lobe in two; the remaining huge one in the frontal, temporal and basal ganglion. On MRI, the findings were similar to those of the CT. Gangliogliomas do not have a characteristic CT and MRI features. They may appear as pure cystlike tumors, cystic dominant mixed tumors with remarkable focal contrast enhancement, solid tumors with variable contrast enhancement or diffuse involving the brain parenchyma and/or subarachnoid spaces. However, radiologists should include gangliogiloma in the differential diagnosis when we find patient has a long-standing process as well as a calcified tumor in the temporal lobe with following characteristic; cystic dominant mixed tumor with remarkable focal contrast enhancement, or a solid mass without hemorrhage or significant surrounding edema. |
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