Résumé
Cystic lesions in the sellar region are one of the special types of space-occupying lesions in the sellar region, including cystic pituitary adenoma, craniopharyngioma, Rathke′s cyst, pituitary apoplexy, pituitary abscess, arachnoid cyst, epidermoid Cysts, etc. Each type of lesion has its corresponding treatment principles and strategies, and the prognosis also varies. Therefore, a clear preoperative diagnosis helps to hammer out the right treatment plan. If the volume of cystic lesions in the sellar region increases to a certain extent, mass effect and changes in pituitary hormones may occur. Different types of cystic lesions have their own characteristics, so as MRI and other imaging. In this paper, the diagnosis and differential diagnosis are analyzed and summarized based on clinical and imaging features, flow chart of differential diagnosis is developed.