The main differential diagnosis included two entities: (i) atypical Kawasaki disease based on clinical criteria (fever, rash, lymphadenopathy, and conjunctivitis) and characteristic laboratory results; sedimentation rate of >120 mm, C-reactive protein 124 mg/dL (normal ≤5 mg/dL), and hemoglobin 9.3 g/dL. Here, CRP is linked to Lymphadenopathy.