Sinus cysts are classified as mucous cysts, mucosal cysts, and cysts that occur due to endocrine retention. Mucosal cysts are formed when the mucus or plasma glands of the sinus mucosa are blocked and the glands swell with secretion. These two types of cysts can be surgically removed and drainage of the sinuses and nasal cavity can be established. 1. External deformity: sinus bulge, smooth and ping-pong-like feeling under the skin when touched. 2.Ocular symptoms: eye pain, diplopia, tearing, eye displacement. 3.Nasal cavity examination: the lateral wall of nasal cavity is shifted to the midline. 4.Dead teeth or carious disease, usually in the lateral incisors. Missing teeth or poorly developed milk teeth. 5.Complicated infection may cause general discomfort, fever, headache, local redness, swelling and pain. 6.The sinus surface is bulging, smooth and ping-pong-like feeling under the skin when touched. 7.Ocular pain, double vision, tearing, eye displacement. 8.The lateral wall of nasal cavity is shifted to the midline. 9.Dead teeth or cavities are usually found in the lateral incisors, missing teeth, or dysplastic milk teeth. 10.Mucus or mucous pus is extracted by sinus puncture. 11.X-ray shows that the sinus cavity of mucous cyst is enlarged, the wall of sinus is thinned or disappeared, the edge of cyst shadow is smooth and the density is uniform. Mucosal cysts are surgically removed in the maxillary sinus radical pathway.
With maxillary sinus clearance, the cyst is removed to preserve the maxillary sinus mucosa. For root cysts, the cyst is removed and the diseased tooth is treated.