Kawasaki disease presenting with hemorrhagic pleural effusion.

Hemorrhagic pleural effusion associated with Kawasaki disease KD is very rare and has not been reported in the medical literature. We describe a 5-year-old male with incomplete (atypical) KD who presented with fever and severe respiratory distress due to bilateral pleural effusions. Other features included unilateral cervical lymphadenopathy, swelling of the hands and feet followed by periungual desquamation, elevated erythrocyte sedimentation rate, thrombocytosis and sterile pyuria. Pleural fluid analysis revealed a hemorrhagic exudative effusion. Therapy with high-dose i.v. immunoglobulin resulted in dramatic clinical improvement and resolution of pleural effusion. An echocardiogram obtained at presentation and at 6 weeks of illness was normal. Pediatricians should be aware that hemorrhagic pleural effusion can be a presenting manifestation of KD.