临床思考病例［２６］答案（病例资料见１９９５年第六期３７４页）考虑到该病例病程长、体征少而轻、肿瘤边界清楚，应首先想到良性肿瘤。故应从以下３种病中去考虑鉴别诊断：ｌ脑膜瘤：是颅内最常见的良性肿瘤，发病率占所有颅的肿瘤的第二位。病程长，体征少而轻，Ｃｈ... Clinical Thinking Case [26] The answer (case information, see the sixth issue of 1995 page 374) taking into account the longer course of the disease, less signs and light, clear tumor boundaries, should first think of benign tumors. Therefore, the following three diseases should be considered in the differential diagnosis: l meningioma: is the most common intracranial benign tumor, the incidence of all cranial tumors of the second place. Long duration, signs of light and light, Ch ...