Affiliations: Michael G. DeGroote School of Medicine, McMaster University, Hamilton, ON, Canada | Division of General Surgery, Department of Surgery, McMaster University, Hamilton, ON, Canada | Department of Pediatric Cardiology, McMaster University Medical Centre, Hamilton, ON, Canada
Note:  Corresponding author: Dr. Richa Parashar, Michael G. DeGroote School of Medicine, McMaster University, 1280 Main Street West, Hamilton, ON, L8S 4L8, Canada. E-mail: firstname.lastname@example.org
Abstract: In this case, we describe a newborn that presented on the first day of life with diffuse, bilateral coronary artery dilatation, in the absence of intrauterine hypoxia or other identifiable causes of coronary artery ectasia. The infant's symptoms followed an acute course before spontaneously recovering. Kawasaki disease, though relatively rare in neonates, may present in this population in the absence of classical criteria. If untreated, the cardiac sequelae of this disease can be serious. Through this case, where spontaneously remitting coronary dilatation is the paramount finding, we entertain the possibility that this may represent the earliest known presentation of Kawasaki disease.