Abstract
Myofibroma is a rare benign tumor that can occur as a solitary or multiple lesions in the skin, subcutaneous tissue, soft tissues, bones, or internal organs. Its occurrence in the maxillofacial region is extremely uncommon. Typically, myofibromas present as solitary or multiple lesions in the skin and subcutaneous tissue of infants or children, with solitary cases being approximately three times more common than multiple cases. We report a case of a solitary myofibroma in the mandible of a child. A 12-year-old girl was referred to our department by a local dental clinic with a suspected tumor of the right mandibular gingiva, following her initial complaint of swelling in the distal gingiva of the right mandibular first molar. Clinical examination revealed a well-demarcated mass measuring 12×15mm in the molar region of the mandible. Imaging showed a clearly defined, smooth-margined, oval-shaped radiolucent lesion extending from the distal aspect of the right mandibular second molar to the anterior portion of the mandibular ramus. The lesion was excised under general anesthesia with a clinical diagnosis of a mandibular tumor. Histopathological examination of the resected specimen confirmed the diagnosis of myofibroma. Based on intraoperative findings, the lesion was considered to have originated not from the mandible itself, but from the adjacent soft tissues near the mandibular bone. Whole-body CT performed postoperatively showed no evidence of tumors in other regions. One year after surgery, the patient remains recurrence-free and in good condition.
