PMID- 34224517 OWN - NLM STAT- MEDLINE DCOM- 20220419 LR - 20220422 IS - 1536-3678 (Electronic) IS - 1077-4114 (Linking) VI - 44 IP - 2 DP - 2022 Mar 1 TI - Amyloidosis in a Patient With Congenital Neutropenia Because of G6PC3 Deficiency. PG - e431-e433 LID - 10.1097/MPH.0000000000002237 [doi] AB - Glucose-6-phosphatase catalytic subunit 3 (G6PC3) deficiency is a recently identified form of congenital neutropenia associated with developmental anomalies. The severity of neutropenia and the clinical spectrum are highly variable. Aside from infectious complications and extrahematologic features, inflammatory bowel disease and autoinflammatory complications are less frequently observed manifestations. However, amyloidosis has never been reported in G6PC3 deficiency. Here, we present a 12-year-old patient with incidentally discovered neutropenia because of the p.E65A (c.194A>C) variant of the G6PC3 gene. He had recurrent aphthae and abdominal pain episodes, and developed nephrotic-range proteinuria, amyloidosis, and end-stage renal failure during follow-up. CI - Copyright (c) 2021 Wolters Kluwer Health, Inc. All rights reserved. FAU - Yildirmak, Zeynep Yildiz AU - Yildirmak ZY AD - Departments of Pediatric Hematology/Oncology. FAU - Ozcelik, Gul AU - Ozcelik G AD - Nephrology. FAU - Ozagari, Ayse Aysim AU - Ozagari AA AD - Pathology, Sisli Hamidiye Etfal Training and Research Hospital, University of Health Sciences, Istanbul. FAU - Genc, Dildar Bahar AU - Genc DB AD - Departments of Pediatric Hematology/Oncology. FAU - Onay, Huseyin AU - Onay H AD - Department of Genetics, Faculty of Medicine, Ege University, Izmir, Turkey. LA - eng PT - Case Reports PT - Journal Article PL - United States TA - J Pediatr Hematol Oncol JT - Journal of pediatric hematology/oncology JID - 9505928 RN - EC 3.1.3.9 (Glucose-6-Phosphatase) RN - EC 3.1.3.9. (G6PC3 protein, human) RN - Neutropenia, Severe Congenital, Autosomal Recessive 3 SB - IM MH - *Amyloidosis MH - Child MH - Congenital Bone Marrow Failure Syndromes MH - Glucose-6-Phosphatase/genetics MH - Humans MH - Male MH - *Neutropenia/complications/congenital/genetics COIS- The authors declare no conflict of interest. EDAT- 2021/07/06 06:00 MHDA- 2022/04/20 06:00 CRDT- 2021/07/05 17:14 PHST- 2021/01/01 00:00 [received] PHST- 2021/05/16 00:00 [accepted] PHST- 2021/07/06 06:00 [pubmed] PHST- 2022/04/20 06:00 [medline] PHST- 2021/07/05 17:14 [entrez] AID - 00043426-202203000-00035 [pii] AID - 10.1097/MPH.0000000000002237 [doi] PST - ppublish SO - J Pediatr Hematol Oncol. 2022 Mar 1;44(2):e431-e433. doi: 10.1097/MPH.0000000000002237.