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Case of the Month

May 2008: Well-defined and large radiolucency left ramus and condyle

Can you make the correct diagnosis?

This is a 22-year-old Alaska Native male with history of 120 pounds of weight loss.  
He presented to Seattle Indian Health Board clinic for a routine dental visit.  The head and neck examination was within normal limits.  There is was no evidence of facial swelling or asymmetry or bony expansion.  However, the panoramic radiograph (Figure 1) revealed a large, well-defined and corticated unilocular radiolucency of the left ramus extending and involving the condylar process and condylar head.  The radiolucency of the condyle is multilocular.     

Select The Correct Diagnosis

Traumatic bone cavity

Odontogenic Keratocyst (OKC)

Ameloblastoma

Benign fibro-osseous lesion (favoring fibrous dysplasia)

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