Cerebellar Lipoma: Report of a Case

小腦脂肪瘤

洪純隆(Shen-Long Howng) ； 張哲浣(Jer-Woan Chang)

《The Kaohsiung Journal of Medical Sciences》 7卷11期 (1991/11) Pp. 609-613

https://doi.org/10.6452/KJMS.199111.0609

摘要

脂肪很少生長在顱內，而長在四疊體或上小腦腦池內的又更屬稀少。本篇病例是個十六歲男性，因頭痛做電腦斷層掃描得知在四疊體及上小腦腦池內有一脂肪瘤，神經學檢查沒有發現運動及平衡等障礙，也沒有Parinaud症候群。
電腦斷層掃描顯示病灶為低密度（Mean為－95 Hounsfield Units），均質性，且界限清楚，核磁共振掃描（0.5T）則可從多種方向，來觀察腫瘤與周圍解剖構造的關係，腫瘤大小為2.2×1.5×2.2公分，腫瘤內較大的血管可呈現低或無訊號的細條形或圓點（黑色），在T1為主及質子密度的影像顯示病灶為高訊號（呈白色），而在T2為主的影像，病灶則為低訊號（呈灰色）。
手術採用Modified sitting position，經Infratentorial supracerebellar approach將脂肪幾乎全部切除，病理報告為脂肪瘤，術後病人的頭痛及視力模糊等症狀消除，走路不穩及復視等併發症，在兩個月內都自動痊癒。

並列摘要

A patient with normal motor and intellectual development suffered headache; especially over the occipital area; and, blurring of vision for five months. Computerized tomography and magnetic resonance imaging of the brain showed a lipoma in the quadrigeminal/superior cerebellar cistern compressing of the aqueduct, inferior colliculus, and vermis. Using the modified sitting position, the tumor was almost totally removed via the infratentorial supracerebellar approach. Postoperative headache and blurring of vision had been improved, but ataxic gait and mild diplopia due to right superior oblique palsy was noted. Ataxic gait was disappeared in half a month and diplopia in two months respectively.

並列關鍵字

magnetic resonance imaging ； brain neoplasms ； lipoma