A forgotten foreign body in the frontal sinus.

A 46-year-old female patient presented with a discharging wound over the nasal bridge, near the medial end of the right eyebrow of 2 months duration. She did not give any history of trauma or surgery in the past. Wound exploration showed a glass piece in the floor of the right frontal sinus. After showing the glass piece, patient remembered road traffic accident she had at the age of 18 years. Patient was asymptomatic for 28 years.To our knowledge, this is the longest retained case of asymptomatic foreign body in the frontal sinus reported in the world literature. Case report and a review of literature concerning foreign body in the frontal sinus are presented.