Stafne

Stafne, also known as Stafne bone defect or lingual mandibular bone defect, is a developmental anomaly characterized by a radiolucent (dark) area within the mandible, typically located in the posterior region, near the angle of the jaw. It is not a true cyst or tumor but rather a focal concavity or depression on the lingual (inner) surface of the mandibular bone.

The exact cause of Stafne bone defects is not fully understood, but it is believed to be related to the entrapment of salivary gland tissue, a blood vessel, or muscle fibers during the embryonic development of the jaw. The pressure exerted by these trapped structures may lead to the formation of the characteristic bone defect. In some cases, the defect is thought to be caused by the pulsating action of the internal pterygoid muscle, which can erode the bone over time.

Stafne bone defects are usually asymptomatic and are often discovered incidentally during routine dental radiographs taken for other purposes. They are more common in middle-aged men. The lesion typically does not cause pain, swelling, or any other symptoms. Diagnosis is usually made based on the characteristic radiographic appearance and clinical examination.

In most instances, no treatment is necessary for Stafne bone defects as they are benign and do not pose any health risks. If the defect is large or causes concern, or if there is diagnostic uncertainty, further investigations such as a CT scan or fine-needle aspiration may be considered. In rare cases where symptoms are present or there is suspicion of another pathology, surgical intervention might be contemplated, but this is uncommon. The defect generally remains stable in size over time and does not progress.