AAOMP case challenge: A maxillary swelling in an infant.

: An asymptomatic swelling was noted in the area of the left anterior maxilla of this two-month old infant by the child's parents. The swelling apparently was of rapid onset since the pediatrician at the one-month well baby check-up did not note it. The swelling caused an elevation of the left alae of the nose and slight facial asymmetry of the upper lip.