Foreign Body in Frontal Sinus: Case Report

Introduction Foreign bodies are quite rarely encountered in the paranasal sinuses. In the literature, intracranial foreign bodies are usually observed in the orbital and frontal sinuses and nasal region (1, 2). Garces and Norris (3) reported that 70% of these foreign bodies usually appeared after maxillofacial traumas and 30% appeared during or after dental procedures of maxilla. Foreign bodies are less common in the frontal sinus as compared to maxillary sinus. Hemostasis or supporting materials that are used in the intracranial lesions treated via transfrontal craniotomy are also among the causes of foreign bodies of frontal sinus (3, 4). Foreign bodies in paranasal sinuses may sometimes be asymptomatic. The diagnosis is difficult unless they are recognized. Foreign bodies can be detected incidentally during investigation for the complications developed in their localization sites or during routine radiological screenings (5).