Case Presentation: A 38-year-old male presented to the hospital with fatigue and progressive exertional dyspnea. He had a childhood history of Kawasaki disease (KD) with no treatment or subsequent follow up. Physical exam revealed marked volume overload, JVD, bibasilar crackles, and an S3 at the left ventricular apex.  EKG was unremarkable. Chest x-ray showed pulmonary [...]