抄録
A simple bone cyst is a pseudocyst that frequently occurs in long bones, such as the humerus and femur. However, the process of development is poorly understood, including causes and pathology. In the jawbone, a frequent site of occurrence is the area from the mandibular canine to the wisdom tooth, whereas this type of cyst is rarely seen in the mandibular ramus. Here, we report a patient with a simple bone cyst extending from the mandibular molar region to the coronoid process. An 11-year-old female came to our clinic for detailed examination and treatment of the right lower jawbone. Panoramic radiograph imaging showed extensive radiolucency extending from the right mandibular molar region to the coronoid process. In computed tomography findings, buccolingual bulging in the corresponding area of the jawbone was confirmed, and the cortical bone appeared to have become thin and the septal walls separated. A cystectomy was performed under general anesthesia. During surgery, no cyst wall was found and the inner cavity was found to continue to the coronoid process. The interior wall of the cavity was removed by scraping, then suturing was performed to complete the procedure. The histopathological diagnosis was a simple bone cyst.
