An unusual presentation of a traumatic bone cyst: a mixed-density variant in the mandibular ramus.

A traumatic bone cyst is a pseudocyst, lacking an epithelial lining, and may contain fluid, connective tissue, or both. The pathogenesis of traumatic bone cyst remains unknown, but the most accepted explanation is the traumatic hemorrhagic theory. A traumatic bone cyst typically presents as a radiolucent lesion. However, it can pose both diagnostic and therapeutic challenges when it manifests as a mixed entity in an unusual location. The present report describes an exceptional case of a mixed-density traumatic bone cyst involving the mandibular ramus and coronoid process of an 18-year-old man. Such lesions may present a challenge for accurate diagnosis and appropriate management. Traumatic bone cyst should be included in the differential diagnosis of mixed-density lesions, particularly because the treatment of traumatic bone cysts is more conservative than that of other odontogenic and nonodontogenic jaw lesions.