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目的总结术前误诊的颅咽管瘤的ＣＴ表现和分析误诊原因。材料与方法经ＣＴ检查２０例患者误诊颅咽管瘤，对误诊ＣＴ征象进行分析。结果本组２０例误诊颅咽管瘤病例中，１４例病灶位于鞍内或／和鞍上，１０例病灶区内无明显钙化，８例病灶无囊变，７例病灶无典型环状强化。结论颅咽管瘤被误诊原因主要ＣＴ表现为非典型病变部位、钙化缺如或不规则钙化、病灶无囊变和病灶的非环状强化等非典型表现征象。
Objective To summarize the CT findings and misdiagnosis of craniopharyngioma preoperatively misdiagnosed. Materials and Methods Twenty patients underwent CT examination of craniopharyngioma by misdiagnosis. CT signs of misdiagnosis were analyzed. Results Of the 20 cases of misdiagnosed craniopharyngiomas, 14 cases were located in the saddle or / and the saddle, 10 cases showed no calcification, 8 cases showed no cystic change, and 7 cases showed no typical annular enhancement. Conclusions The main CT findings of misdiagnosis of craniopharyngioma are atypical lesions, calcification or irregular calcification, non-cystic lesions of lesions and acyclic enhancement of lesions.