Isolated osteochondroma near the mandibular angle

Abstract

A benign tumor of osseous and cartilaginous origins, osteochondroma generally develops in osseous tissue and is frequently found near the end of long bones. It is relatively rare in the oral and maxillofacial region but is common in the mandibular condyle and coronoid process in the pediculate form. We report on a rare case of osteochondroma in soft tissue near the mandibular angle without pedicle to the bone.

Solitary submandibular soft tissue osteochondroma: A rare case report

“…Such lesions are rare in the head and neck region, with very few cases described. Even rarer are extraskeletal osteochondromas [ [2] , [3] , [4] ], as in the present case in which the tumor was present in submandibular soft tissue without attachment to the overlying mandible or surrounding muscle. This unique presentation makes this case worth documentation in the scientific literature.…”

“…However, based on reported cases, it appears extremely rare for osteochondroma to form in the soft tissues of the maxillofacial or head and neck regions. To the best of our knowledge, there have been only three such reported cases [ [2] , [3] , [4] ]. In this report, we present a new case of extra-skeletal osteochondroma in the submandibular area.…”

Osteochondroma at the angle of mandible: A rare case

“…The search showed two case reports at the angle of mandible, one case was present on the lingual surface of mandible attached with a stalk,[ 11 ] the other reported OC was at the angle of Mandible in the soft tissue and was not in continuous with the Mandible. [ 5 ] Our case is unique as this OC was at the angle in continuous with the Mandibular bone.…”

“…[ 2 ] OC is frequently seen in distal metaphyseal region of long bones and also in ribs, scapulas, clavicles, vertebrae, femur and proximal metaphysis of tibia. [ 4 5 ] In craniofacial region mandibular condyle, coronoid and symphysis have cartilage precursors. Remnants of these cartilage precursors can give rise to OC at these regions.…”

“…The other reported sites are mandibular symphysis, body of mandible, in the soft tissues at the angle of the mandible, maxillary sinus and posterior maxilla. [ 3 4 5 ] OC is usually seen in younger individuals with male predominance. [ 6 ] OC may present in a solitary fashion or as multiple OCs seen in autosomal dominant syndrome known as osteochondromatosis.…”