维生素B12缺乏引起的巨幼细胞性贫血
Megaloblastic anaemia due to vitamin B12 deficiency
- 上级条目
- 营养性或代谢性贫血
- 层级
- 4 级
定义
维生素B12的饮食摄入不足、维生素B12吸收障碍、小肠切除术、腹腔疾病或影响维生素B12吸收的遗传突变引起的疾病。本病特点是体内维生素B12水平下降，无论是否伴有贫血。本病可表现为疲劳、苍白、头晕、癫痫或痴呆症状。通过血液样本中维生素B12水平的下降确诊。
A disease caused by inadequate dietary intake of vitamin B12, impaired absorption of vitamin B12, surgical removal of the small bowel, coeliac disease or inherited mutations affecting absorption of vitamin B12. This disease is characterised by decreased levels of vitamin B12 in the body presenting with or without anaemia. This disease may present with fatigue, pallor, dizziness, seizures, or symptoms of dementia. Confirmation is by identification of decreased levels of vitamin B12 in a blood sample.
子条目 共 8 条
后组配轴 Postcoordination
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