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Dr. Ruth Ann Vleugels (Dermatology): A 5-month-old girl was seen in the pediatric dermatology clinic because of a rash. She had been well until 3 months of age, when her parents noticed a red, slightly raised lesion on her left cheek, 2 mm in diameter, which did not seem to cause discomfort. It grew slowly over the next several weeks, with swelling at times but no frank blistering. Approximately 1 week before the current evaluation, additional reddish-brown papules, 2 to 5 mm in diameter, appeared, first on the forehead and then on the chest, abdomen, back, arms, and legs. The
Differential Diagnosis
Urticaria Pigmentosa
Disseminated Juvenile Xanthogranuloma
Generalized Eruptive Histiocytosis
Leukemia Cutis
Dr. Melissa M. Burnett's Diagnosis
Pathological Discussion
Discussion of Management
Acute Leukemia in Infancy
Treatment of Pediatric AML
Risk Stratification
Age Less Than 1 Year
Leukemia Cutis
Abnormalities of Chromosome 11q23 at the MLL Locus
Anatomical Diagnosis
Source Information
From the Departments of Pediatric Dermatology (M.M.B.), Pediatric Hematology–Oncology (M.S.H.), and Pathology (R.M.S.), Massachusetts General Hospital, Boston; the Department of Pediatric Dermatology, Cambridge Hospital (Cambridge Health Alliance), Cambridge, MA (M.M.B.); and the Departments of Dermatology (M.M.B.), Pediatrics (M.S.H.), and Pathology (R.M.S.), Harvard Medical School, Boston.
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