Objective To improve diagnostic accuracy of pineal region neoplasms by analyzing the MRI findings and the clinical features.Materials and Methods 23 cases of pineal region neoplasms proved by operation and pathology were analyzed.All cases were performed with plain and enhanced MR scan.Results(1) Most pineal region neoplasms had characteristic MRI appearances,such as meningioma,pineal parenchymal tumours and germ cell tumours.(2) Some pineal region neoplasms had specific patient's age and gender, pineoblast...