This case was presented at the Tufts University School of Medicine postgraduate course “New England Pediatric Hospital Medicine 2022,” directed by Dr. Chadi El Saleeby and Dr. Kerstin Zanger.
Disclosure forms provided by the authors are available with the full text of this article at NEJM.org.
We thank Dr. Rex Neal Smith for his assistance with the pathology section of this manuscript.
From the Department of Pediatrics, Barbara Bush Children’s Hospital at Maine Medical Center, Portland (M.C.O.); and the Departments of Radiology (R.S.), Pediatrics (A.S.), and Pathology (I.A.R.), Massachusetts General Hospital, and the Departments of Radiology (R.S.), Pediatrics (A.S.), and Pathology (I.A.R.), Harvard Medical School — both in Boston.