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Paediatric Cogan Syndrome masquerading as IgA vasculitis.

Praveen K Ramani1, Florin Grigorian2, Heidi Lightle3

  • 1Department of Pediatric Neurology, Arkansas Children's Hospital, University of Arkansas for Medical Sciences, Little Rock, AR, USA.

Modern Rheumatology Case Reports
|October 30, 2023
PubMed
Summary

Paediatric Cogan Syndrome, a rare autoimmune vasculitis, can mimic IgA vasculitis in children. Early recognition of ocular and auditory symptoms is crucial for timely diagnosis and to prevent permanent disability.

Keywords:
Cogan SyndromeIgA vasculitisKawasaki DiseaseMethotrexateuveitis

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Area of Science:

  • Pediatric Rheumatology
  • Autoimmune Diseases
  • Vasculitis

Background:

  • Paediatric Cogan Syndrome is a rare autoimmune vasculitis affecting the eyes and ears.
  • Its diagnosis and management remain poorly defined.
  • It is often underrecognized in the pediatric population.

Observation:

  • A 12-year-old girl initially presented with symptoms consistent with IgA vasculitis (formerly Henoch-Schönlein Purpura).
  • She subsequently developed anterior uveitis and bilateral sensorineural hearing loss, leading to a diagnosis of atypical Cogan Syndrome.
  • Infectious and other rheumatologic causes were excluded.

Findings:

  • The case highlights Paediatric Cogan Syndrome as a potential mimic of IgA vasculitis in children.
  • Ocular inflammation (anterior uveitis) responded to systemic glucocorticoids and methotrexate.
  • Sensorineural hearing loss was progressive, ultimately requiring a cochlear implant.

Implications:

  • New-onset ocular or vestibular symptoms following IgA vasculitis in children should raise suspicion for Cogan Syndrome.
  • Early clinical recognition is vital for timely diagnosis and treatment to prevent permanent disabilities.
  • This case underscores the importance of considering atypical presentations in rare autoimmune diseases.