Severe cryopyrin-associated periodic syndrome first characterized by early childhood-onset sensorineural hearing loss – case report and literature review

Publication date: Available online 28 January 2019

Source: International Journal of Pediatric Otorhinolaryngology

Author(s): Amaris Hui, Liane B. Johnson, Rony Greemberg, Lynette Penney, Suzanne Ramsey

Abstract

Infant-onset bilateral sensorineural hearing loss is a key presenting symptom of the autoinflammatory cryopyrin-associated periodic syndrome. Other symptoms include periodic fever, cold-induced urticaria-like rash, chronic aseptic meningitis, polyarticular arthralgias, and renal AA amyloidosis. Early recognition and treatment with interleukin-1 blockade are critical for preventing disabling or fatal complications. We describe a patient with severe cryopyrin-associated periodic syndrome who presented at age 18 months with macrocephaly and moderate sensorineural hearing loss, later developing systemic sequelae. The pathogenic nature of the de novo NLRP3 gene variant identified was supported by a markedly elevated serum amyloid A level and sustained clinical response to anti-IL-1 therapy.

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