Kawasaki disease (KD) is a systemic vasculitis associated with various clinical manifestations and complications, such as gastrointestinal abnormalities. We report a 3-year-old boy who presented with hematemesis and diffuse gastroduodenal ulcerations complicating KD. He received standard medical therapy for the disease and gastric ulcer, which showed effect after a few days. Although rare, peptic ulcers should be considered a complication of KD to ensure early diagnosis and treatment as it may cause severe morbidity.
Child ; Child, Preschool ; Early Diagnosis ; Endoscopy ; Hematemesis ; Humans ; Male ; Mucocutaneous Lymph Node Syndrome ; Peptic Ulcer ; Stomach Ulcer ; Systemic Vasculitis