Nakasu Y, Isozumi T, Nakasu S, Handa J
Department of Neurosurgery, Shiga University of Medical Science, Japan.
Acta Neurochir (Wien). 1990;103(3-4):99-104. doi: 10.1007/BF01407513.
Three patients with histologically proved Rathke's cleft cysts (RCCs) were evaluated with magnetic resonance imaging (MRI) and computed tomographic (CT) scan. Thirteen cases reported in the previous literature were also reviewed to evaluate the MRI features of RCCs and to compare them with CT features. The RCCs had various patterns of signal intensities on T 1-weighted and T 2-weighted MRI. The cysts were well-circumscribed and mainly in the sella turcica extending to the suprasellar cistern with minimal mass effect. Ten of sixteen cases had homogeneous cysts, and six had heterogeneous cysts. The CT scans showed the cysts as low or isodensity, well-demarcated lesions in the sella, that did not enhance with a few exceptions in which a thin ring enhancement was seen. MRI is superior to CT in the evaluation of the RCC, and is particularly useful in surgical planning, although MRI has a limitation on the specific, analytic description of the cyst contents.
对3例经组织学证实的拉克氏裂囊肿（RCC）患者进行了磁共振成像（MRI）和计算机断层扫描（CT）评估。还回顾了先前文献报道的13例病例，以评估RCC的MRI特征并将其与CT特征进行比较。RCC在T1加权和T2加权MRI上有多种信号强度模式。囊肿边界清晰，主要位于蝶鞍内，延伸至鞍上池，占位效应最小。16例中有10例为均匀囊肿，6例为不均匀囊肿。CT扫描显示囊肿为低密度或等密度，在蝶鞍内为边界清晰的病变，除少数可见薄环状强化外，无强化表现。在RCC的评估中，MRI优于CT，在手术规划中尤其有用，尽管MRI在对囊肿内容物进行具体的分析描述方面存在局限性。
