Frontiers in Pediatrics (Jan 2023)

Haploinsufficiency of A20 in a Chinese child caused by loss-of-function mutations in TNFAIP3: A case report and review of the literature

  • Jing Liu,
  • Jing Liu,
  • Yuese Lin,
  • Yuese Lin,
  • Xuandi Li,
  • Xuandi Li,
  • Hongjun Ba,
  • Hongjun Ba,
  • Xiufang He,
  • Xiufang He,
  • Huimin Peng,
  • Huimin Peng,
  • Shujuan Li,
  • Shujuan Li,
  • Ling Zhu,
  • Ling Zhu

DOI
https://doi.org/10.3389/fped.2022.990008
Journal volume & issue
Vol. 10

Abstract

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Case PresentationA 3-year-and-6-month-old child was reported to have recurrent high fever with generalized lymph node enlargement and significant elevation of inflammatory markers such as C-reactive protein and procalcitonin in tests. Later, whole exome sequencing determined that the child's disease was haploinsufficiency of A20 (HA20).ResultsAfter immunosuppressive therapy, the child's symptoms improved significantly, and the inflammatory markers dropped to the normal range.ConclusionBecause of the characteristics of HA20, this disease is often underdiagnosed and misdiagnosed in clinical practice. By reporting this case of HA20 in a child, we hope to increase the awareness of this disease in the clinic.

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