An Adolescent with Kawasaki Disease

Area of Science:

• Pediatric Cardiology
• Rheumatology
• Infectious Diseases

Background:

• Kawasaki disease is an acute vasculitis affecting children under 5, with variable myocarditis incidence.
• Myocarditis in Kawasaki disease is typically mild in the acute stage.
• Unknown etiology of Kawasaki disease poses diagnostic challenges.

Observation:

• A teenage boy presented with atypical/incomplete Kawasaki disease manifestations.
• The patient developed fulminant myocarditis rapidly within a week of illness.
• The condition progressed to a fatal outcome.

Findings:

• Fulminant myocarditis can occur in Kawasaki disease, even with atypical presentations.
• Myocardial ischemia symptoms in children warrant consideration of Kawasaki disease.
• Late or atypical presentations may carry a higher risk of severe cardiac complications.

Implications:

• Early recognition and treatment of Kawasaki disease are crucial, even with unusual symptoms.
• Heightened clinical suspicion for Kawasaki disease is needed in pediatric myocardial ischemia cases.
• This case emphasizes the potential for severe cardiac sequelae in Kawasaki disease beyond typical presentations.