**3. Frontal sinus fracture**

A frontal sinus fracture is a common injury in patients who suffer high-energy trauma from motor vehicle accidents or altercations [3].The frontal sinus fracture accounts for 5–15% of all fractures of the maxillofacial area [4] and is often associated with neurological deficit and other facial fractures [3].The involvement of the brain is not uncommon. It has been suggested that more than 80% of the patients with a fracture of both the anterior and the posterior wall have intracranial injuries, such as hemorrhages and cerebral contusions [5].Pain is a common symptom in conscious patients with a frontal sinus fracture. Lacerations are seen in 50% of patients. About 25% of patients have a visible depression of the forehead [6]. Other possible symptoms are epistaxis, problems with vision, edema and paresthesia of the supraorbital region. Leakage of cerebrospinal fluid, due to damage of the dura, is a common finding [4].Computed tomography (CT) is the gold standard in diagnosing the degree of involvement of the frontal sinus [3].
