Case records of the Massachusetts General Hospital. Weekly clinicopathological exercises. Case 13-2004. A newborn girl with a large cutaneous lesion, thrombocytopenia, and anemia.

From the Division of Plastic Surgery, Craniofacial Center, and Vascular Anomalies Center, Children’s Hospital (J.B.M.); the Department of Radiology (S.A.), Pediatric Service (R.A.B.E.), and the Department of Pathology, Division of Dermatopathology (M.C.M.), Massachusetts General Hospital; and the Departments of Surgery (J.B.M.), Radiology (S.A.), Pediatrics (R.A.B.E.), and Dermatology (M.C.M.), Harvard Medical School — all in Boston.