Unexpected Death in a Young Child With Cogan Syndrome.

Area of Science:

• Pediatric Rheumatology
• Vasculitis
• Autoinflammatory Diseases

Background:

• Cogan syndrome (CS) is a rare vasculitis affecting ocular and cochleovestibular systems, extremely uncommon in children.
• Limited data exists on pediatric CS management and outcomes, with only ~50 cases reported.

Purpose of the Study:

• To report an unusual pediatric case of Cogan syndrome with a fatal outcome.
• To emphasize the critical need for evidence-based guidelines in diagnosing and managing pediatric CS.

Main Methods:

• Case report of a 4-year-old child with symptoms suggestive of autoinflammatory disease, progressing to Cogan syndrome.
• Diagnostic workup ruled out other conditions; treatment involved corticosteroids, anakinra, infliximab, and tocilizumab.
• Autopsy findings analyzed for disease manifestation.

Main Results:

• The patient presented with non-specific inflammatory symptoms, evolving to include uveitis and hearing loss, consistent with Cogan syndrome.
• Tocilizumab provided initial clinical and laboratory improvement, but the patient died unexpectedly after one year.
• Autopsy revealed extensive vasculitis involving coronary and aortic vessels.

Conclusions:

• This case represents an uncommon, severe manifestation of Cogan syndrome in a child.
• The fatal outcome in this pediatric patient highlights diagnostic and therapeutic challenges.
• There is an urgent need for established international guidelines for pediatric Cogan syndrome management and follow-up.