遗传性失血性贫血 II-A 类型 罕见病例报告
Tejasvi Sharma1, Shruti Vaswani1, Debasish Barman2
1Department of Pathology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India.
Indian journal of pathology & microbiology
|June 7, 2024
概括
一个罕见的遗传疾病CDA II (Congenital dyserythropoietic anemia type II) 在一个年轻男孩身上被诊断出患有严重贫血. 基因分析发现了一种新型的SEC23B基因变异,进步了对这种罕见疾病的理解.
科学领域:
- 遗传学 是一个遗传学.
- 血液学 血液学 血液学
- 儿科 儿科 儿科
背景情况:
- 遗传性失血性贫血II型 (CDA II),也称为遗传性红细胞多核性,具有阳性酸性血清测试 (HEMPAS),是一种罕见的自体遗传性衰退性疾病.
- CDA II呈现出不同严重程度的贫血,需要进行彻底的诊断调查.
- 由于CDA II的稀有性和复杂性,需要详细的病例报告和分子研究.
研究的目的:
- 在儿科患者中报告CDA II病例.
- 在本案中确定CDA II的遗传基础.
- 为了解CDA II中的SEC23B基因突变做出贡献.
主要方法:
- 临床评估包括对贫血,腹部张张和发育迟缓的评估.
- 骨髓吸附分析以评估红色素形成.
- 整体外基因组测序 (WES) 用于分子遗传诊断.
主要成果:
- 一个两岁的男孩出现了严重的贫血,腹部膨胀和延迟的里程碑.
- 骨髓发现表明了CDA的可能性.
- 整个外基因组测序确定了SEC23B基因中的c.1142C>T (p.Thr381Ile) 变体.
结论:
- 这项研究成功地诊断了儿童患者的CDA II.
- 在这种情况下,一种新的SEC23B变异被确定为CDA II的可能原因.
- 这一案例强调了分子诊断在确认罕见的遗传性贫血症 (如CDA II) 中的重要性.
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