Objective:To analyze the relationship between position of Rathke's cleft cyst and pituitary gland by MRI and to explore its differential diagnostic value. Methods:Totally 48 cases of Rathke's cleft cyst proved by the operation and pathology were served as cyst group,while 18 cases of pituitary adenoma which were misdiagnosed as Rathke's cleft cyst were served as control group. The relationship between position of Rathke's cleft cyst and pituitary gland in the coronal and sagittal plane was analyzed with MRI...