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作者:周睿捷1,钟佳成2,詹丹婷1,2,王凌伟1,2
单位:1. 南方科技大学医学院;2. 深圳市呼吸疾病研究所
【摘要】 支气管扩张症是抗体免疫缺陷患者最常见的呼吸系统表现之一,但临床上由于抗体免疫缺陷患者相对罕见,临床医生对该类原因造成的支气管扩张症认识尚不充分。现报道1例常见变异型免疫缺陷病合并支气管扩张症的临床表现、影像学特征、基因检测结果并随访其预后,旨在强调临床医生应对支气管扩张症进行索因。
支气管扩张症(简称支扩)是由于反复发生的化脓性感染、中小支气管反复损伤和/或阻塞、支气管壁结构破坏,最终导致支气管异常和持久性扩张的一大类疾病。目前我国尚缺乏支扩的流行病学数据[1]。支扩的病因多种多样,临床上对某些少见病因所致的支扩认识尚不充分,推测存在相当数量的漏诊和误诊。现报道我科收治的1例常见变异型免疫缺陷病(common variable immunodeficiency disease,CVID)合并支扩的临床表现、影像学特征、基因检测结果并随访其预后,旨在提高临床医生对支扩少见病因的诊断水平。
三、讨论
图2 B细胞发育过程及CD19和CD20的表达情况
图片来源:B cell-based therapies in CNS autoimmunity: differentiating CD19 and CD20 as therapeutic targets(DOI: 10.1177/1756286418761697)
图3 BTK基因参与B细胞发育过程示意图。在人和小鼠Pro-B至Pre-B细胞的发育过程中,均需要BTK基因参与。红色字体表示的基因可导致无丙种球蛋白血症患者或小鼠模型中对应节点的B细胞发育障碍。
参考文献
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