A Case of Cyclic Neutropenia and Associated Amyloidosis.

Chibuzo Ilonze, Kari M Galipp, Teresa Scordino, William H Meyer, Ashley Baker

Journal of pediatric hematology/oncology 2021 Nov 01

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Cyclic neutropenia has been rarely associated with chronic inflammation and development of reactive AA amyloidosis. We report a family with cyclic neutropenia with associated renal and thyroid amyloid. A 12-year-old female presented with thyromegaly, recurrent aphthous ulcers, severe neutropenia, and renal failure. Renal and thyroid biopsies revealed abundant amyloid deposition. Presence of a heterozygous ELANE c.358 A>T gene mutation p.I120F variant with autosomal dominant inheritance confirmed the diagnosis of cyclic neutropenia. The patient's father also had neutropenia and amyloidosis with renal failure. We started filgrastim to attenuate neutropenia and thereby reduce chronic inflammation and minimize further amyloid deposition. Copyright © 2021 Wolters Kluwer Health, Inc. All rights reserved.

Citation

Chibuzo Ilonze, Kari M Galipp, Teresa Scordino, William H Meyer, Ashley Baker. A Case of Cyclic Neutropenia and Associated Amyloidosis. Journal of pediatric hematology/oncology. 2021 Nov 01;43(8):e1115-e1117