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A new case with Hermansky-Pudlak syndrome type 9, a rare cause of syndromic albinism with severe defect of platelets dense bodies

机译:一种新案例,具有Hermansky-Pudlak综合征9型,是血小板严重缺陷的综合变复古症的罕见原因

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摘要

Hermansky-Pudlak syndrome (HPS) is a rare form of syndromic oculocutaneous albinism caused by disorders in lysosome-related organelles. Ten genes are associated with different forms of HPS. HPS type 9 (HPS-9) is caused by biallelic variants of BLOC1S6. To date, only three patients with HPS-9 have been reported. We described one patient presenting with ocular features of albinism. Genetic analysis revealed two compound heterozygous variants in the BLOC1S6 gene. Extended hematological studies confirmed the platelet storage pool disease with absence of dense granules and abnormal platelet aggregation. By reviewing the previous published cases we confirm the phenotype of HPS-9 patients. This patient is the only one described with dextrocardia and abnormal psychomotor development.
机译:Hermansky-Pudlak综合征(HPS)是一种罕见的综合征性眼皮肤白化病,由溶酶体相关细胞器紊乱引起。10个基因与不同形式的HPS有关。HPS 9型(HPS-9)由BLOC1S6的双等位基因变体引起。迄今为止,仅报告了三例HPS-9患者。我们描述了一名患者表现为白化病的眼部特征。遗传分析显示BLOC1S6基因中存在两个复合杂合变体。长期的血液学研究证实了血小板储存池疾病,即缺乏致密颗粒和异常血小板聚集。通过回顾之前发表的病例,我们确认了HPS-9患者的表型。这名患者是唯一一名右位心和精神运动发育异常的患者。

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