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A 14-year-old boy presented with a 1-month history of a rapidly enlarging left-sided facial mass and progressive trismus. There was no significant tenderness to palpation. His medical and family histories were otherwise unremarkable, and a review of systems was noncontributory. There was no evidence of cranial nerve dysfunction, fever, cough, or headaches. A contrast-enhanced computed tomographic scan revealed a 4.4 × 4.2-cm heterogeneous mass with both solid and cystic components in the left infratemporal fossa and masticator space. There was osseous erosion of the mandibular condyle, coronoid process, and portions of the ramus to the left angle of the mandible (Figure 1). Plain film evaluation of the chest showed no evidence of pulmonary disease.
Suh JD, Kirsch CF, Hirschowitz SL, Wang MB. Pathology Quiz Case 1. Arch Otolaryngol Head Neck Surg. 2009;135(6):616. doi:10.1001/archoto.2009.41-a