以脑血管障碍为首发表现的真性红细胞增多症３例报告马顺天例１男性，６３岁。因反复头晕，现物旋转２年，再发１天，于１９９１年８月４日入院。眩晕以睁眼及站立时明显，平卧及闭目时减轻，伴全身出汗、恶心呕吐，无耳鸣耳聋。近２年共发作５～６次。过去无眩晕史，有冠... Report of 3 cases of polycythemia vera with cerebrovascular disease as first manifestation Ma Shuntian 1 male, 63 years old. Due to repeated dizziness, the current rotation of 2 years, another one day, in August 4, 1991 admission. Vertigo to open your eyes and standing obviously, supine and eyes closed to reduce, with the body sweating, nausea and vomiting, no tinnitus and deafness. The past 2 years a total of 5 to 6 episodes. No history of vertigo, a crown ...