## Overview Paranasal sinus disease includes infection (sinusitis), cysts, and dental-related problems affecting the frontal and maxillary sinuses. The most common sign is unilateral malodorous nasal discharge. Facial swelling, dull percussion, and head shaking may occur. Dental disease of the upper cheek teeth is a frequent underlying cause. ## Causes Primary bacterial infection, tooth-root abscess, sinus cyst, or neoplasia. ## Diagnosis Endoscopy, radiographs or computed tomography, and oral examination. ## Treatment Depends on the cause: antibiotics and lavage for primary sinusitis, tooth extraction for dental disease, or surgical removal for cysts. ## Recovery and Prognosis Good for primary sinusitis and most cysts. Dental-related cases require removal of the affected tooth. ## Prevention Regular dental care.
unilateral malodorous nasal discharge; facial swelling; dull percussion over the sinus; head shaking; possible dental pain
## Overview Paranasal sinus disease includes infection (sinusitis), cysts, and dental-related problems affecting the frontal and maxillary sinuses. The most common sign is unilateral malodorous nasal discharge. Facial swelling, dull percussion, and head shaking may occur. Dental disease of the upper cheek teeth is a frequent underlying cause. ## Causes Primary bacterial infection, tooth-root abscess, sinus cyst, or neoplasia. ## Diagnosis Endoscopy, radiographs or computed tomography, and oral examination. ## Treatment Depends on the cause: antibiotics and lavage for primary sinusitis, tooth extraction for dental disease, or surgical removal for cysts. ## Recovery and Prognosis Good for primary sinusitis and most cysts. Dental-related cases require removal of the affected tooth. ## Prevention Regular dental care.
unilateral malodorous nasal discharge; facial swelling; dull percussion over the sinus; head shaking; possible dental pain