A Case of a Retained Surgical Sponge after Endoscopic Sinus Surgery Depicted on CT Imaging

nuses for chronic sinusitis is mainly performed to open the narrow bony points and to restore ventilation and internal drainage. Obstruction of the anterior ethmoid cells and the frontal recess by scar tissue or by a granulation polyp is a common cause of recurrent sinusitis after an ethmoid sinus operation (1). Mucocele formation, due to scarring in the frontal recess, may be also a cause of recurrent disease. Although rare, a retained surgical sponge can cause recurrent sinusitis after endoscopic sinus surgery (2). A case of a retained surgical sponge with granuloma with CT findings is presented.