Case of the Month: February, 2012

Submitted by Louis Muscarella, MD and Marcel Maya, MD .

History: A 4-month-old female with a spontaneous and rapidly growing lesion arising from upper gingival mucosa presents to the pediatrician. On physical examination, the lesion is displacing adjacent teeth and causing superior deviation of the upper lip. It is also found to be  ‘rock hard’  on palpation. There is no other significant past medical history. A CT with coronal and 3D images was obtained.

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Question: Which of the following should not be in the differential diagnosis of the above images?

  1. Langerhans Histiocytosis
  2. Metastatic Neuroblastoma
  3. MelanoticNeuroectodermal Tumor of Infancy
  4. Rhabdomyosarcoma
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