颅内精原细胞瘤是一种少见的肿瘤。我所经CT检查，并经手术病理证实两例规报告如下。例1女，15岁。右侧肢体无力5年余，加重伴抽搐半年而入院。2年前经CT检查诊断为“左内囊陈旧性出血灶”。半年前病情加重。再行CT检查。示左侧基底节区有一约6．7×5．2×5cm大小囊实性病灶， Intracranial seminomas are rare tumors. I have been examined by CT and confirmed by surgery and pathology. Example 1 Female, 15 years old. The right limb was weak for more than five years and was hospitalized with convulsions for six months. Two years ago, he was diagnosed as having a “left internal capsule old hemorrhage” by CT. Six months ago, the condition worsened. CT examination again. The left basal ganglia region shows a cystic solid lesion of approximately 6.7 x 5.2 x 5 cm in size.