Abstract
We report the treatment of a 61-year-old man presenting with an indwelling tube in the left maxillary sinus. CT scans and panoramic X-ray revealed left maxillary sinusitis. He underwent surgery under general anesthesia to removal a swelling in the mucosa. During the procedure, an indwelling tube was discovered in the maxillary sinus, and was removed at the same time. After the operation, the patient had dull cheek pain, but the offensive-smelling leakage stopped completely.