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Specific granule deficiency-2 is an autosomal recessive immunologic disorder characterized by recurrent infections due to defective neutrophil development. Bone marrow findings include hypercellularity, abnormal megakaryocytes, and features of progressive myelofibrosis with blasts. The disorder is apparent from infancy, and most patients die in early childhood unless they undergo hematopoietic stem cell transplantation. Some patients may have additional findings, including delayed development, mild dysmorphic features, and distal skeletal anomalies (summary by {2:Witzel et al., 2017}).nnFor a discussion of genetic heterogeneity of SGD, see SGD1 (OMIM:245480).
Online Mendelian Inheritance In Man (OMIM) has a summary of published research about this condition and includes references from the medical literature. The summary contains medical and scientific terms, so we encourage you to share and discuss this information with your doctor. OMIM is authored and edited at the McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine.
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