巨幼红细胞性贫血(megaloblastic anemia,MA)是叶酸或维生素B_(12)缺乏或某些影响核苷酸代谢的药物导致细胞核脱氧核苷酸合成障碍所致的贫血。近年来不断有贫血导致缺血性脑血管病的个案报道,但大都是关于缺铁性贫血所致的缺血性脑血管病,至今国内少有关于巨幼红细胞性贫血致急性多发性脑梗死的报道。1病例患者,男,66岁。因“突发反应迟钝、记忆力减退伴左下肢无力8d。”入院。患者入院时左下肢行走困难,行走呈划 Megaloblastic anemia (MA) is anemia caused by the deficiency of folic acid or vitamin B 12 or certain drugs that affect the metabolism of nucleotides, resulting in a disorder of nucleosynthesis deoxynucleotide synthesis. In recent years, there are anecdotal reports of anemia leading to ischemic cerebrovascular disease, but most of them are about ischemic cerebrovascular disease caused by iron deficiency anemia. So far, there are few acute multiple cerebral infarction patients with megaloblastic anemia in China Report. 1 case patients, male, 66 years old. Because of “sudden unresponsive, memory loss with left leg weakness 8d. ” Admission. Patients left lower extremity walking difficulties when walking, walking plan