Osteochondroma is a relatively common benign tumor of skeleton, occurring most often in the metaphyseal region of long bone. However, it is very rare in the facial bone, expecially in the mandible body.
We report a case of osteochondroma on the left mandible body in a 9-years-old male, which has been present for 2 years. It was successfully removed by surgery. On pathologic examination, it was diagnosed as osteochondroma consisting of bony structures covered with a cartilaginous cap, the typical composition of osteochondroma.
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