An 8-year-old girl was admitted to the hospital with a 7-day history of fever and rash. Examination She had a diffuse macular rash, fissured lips, and strawberry tongue. Body temperature was 39°C (102.2F) She had a nonexudative conjunctival injection in both eyes, a few enlarged cervical lymph nodes, erythema of the palms and soles, mild edema of the hands, and periungual desquamation. The cardiac examination was normal. Results on electrocardiography and echocardiography were normal.

The platelet count was normal. Laboratory Investigations WBCs: 13,000 per cubic millimeter (reference range, 3500–10,500) Elevated erythrocyte sedimentation rate (ESR) of 80 mm/ hour (reference range: 0 to 29) What is the most likely diagnosis in this case? *This case is from Docplexus editorial team for educative purpose only. Source: NEJM