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Autoimmune neutropenia in an infant with neck abscess Tadahiko Saiki 1 , Teruhiro Ogawa 1 , Yumiko Ikemoto 2 , Kazuaki Kuroda 3 , Takahisa Koyama 4 1Department of Otorhinolaryngology, Himeji St. Mary's Hospital pp.181-186
Published Date 2021/2/20
DOI https://doi.org/10.11477/mf.1411202621
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 We report a case of autoimmune neutropenia in an infant with a neck abscess. A six-month-old male infant visited our hospital with the chief complaint of right neck swelling. CT revealed an abscess involving the right posterior neck. At admission, the white blood cell count was 9900/mm3 with 92.5% neutrophils;however, 4 days later, neutrophils accounted for only 1.0% of the white blood cells. Surgical debridement of the abscess was performed under general aresthesia. Quantitative analysis of anti-neutrophil antibodies revealed anti-human neutrophil antigen-1a antibody, and the infant was diagnosed with autoimmune neutropenia. The neutrophil count normalized spontaneously, 15 months after admission.


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電子版ISSN 1882-1316 印刷版ISSN 0914-3491 医学書院

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