MR Imaging of the Infundibular Stem Part 2: Abnormal Stem

腦下垂體莖突之磁振造影影像第二部份：不正常莖突

田德敭(Robert D. Tien)

《中華放射線醫學雜誌》 17卷4期 (1992/12) Pp. 303-316

摘要

我們回溯性研究三十一位有不正常腦下垂體莖突患者的電腦斷層和磁振造影影像，對莖突的大小、形狀及位置加以分析評估，以期能找出特殊之診斷發現。莖突無法辨認、不正常變粗及腫瘤侵犯是最主要的發現。磁振造影可清楚地顯示出莖突的病灶並將其與腦下垂體或下視丘的病灶分辨出來。雖然這些病灶的訊號強度並無特殊性，但當這些不正常的莖突形態配合相關的臨床資料時，磁振造影即能夠提供相當特定的診斷資料。

關鍵字

腦下垂體電腦斷層檢查 ； 腦下垂體磁振造影 ； 腦下垂體疾病 ； 腦下垂體腫瘤

並列摘要

CT and MR scans in 31 cases of abnormal infundibular stem were investigated retrospectively to identify characteristic diagnostic findings. The size, shape, and position of the infundibular stem were noted. Absence of the infundibular stem, abnormal thickening of the stem, and mass lesions involving the infundibular stem were the predominant abnormalities. MR can delineate lesions affecting infundibular stems and distinguish them from the pituitary gland or hypothalamus. Although the signal intensities of these lesions may be nonspecific, MR is able to provide a relatively specific diagnosis when the morphology of these abnormal infundibular stems is correlated with clinical information.

並列關鍵字

pituitary, CT ； pituitary, MRI ； pituitary, disease ； pituitary, neoplasm