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Benign Cysts of the Paranasal Sinuses. Presented by Dr. Harold F. Schuknecht.
Benign cysts of the paranasal sinuses are of two general types, those which take origin from the sinus mucosa and those which invade the maxillary sinuses from the teeth. From the mucosa arise three types: The nonsecreting cysts, the mucous gland (retention) cysts and the mucoceles.Nonsecreting cysts are found in the maxillary sinuses and occur in about 5 per cent, as shown by routine roentgenograms. On roentgenograms they produce a characteristic dome-shaped shadow, but may also fill the sinus and produce complete homogeneous clouding. The cyst forms as a collection of straw-colored fluid in the loose subepithelial connective tissue of the mucosa. This fluid is usually sterile and coagulates on standing. Small nonsecreting cysts usually produce no symptoms and need not be removed. When the cyst occupies one half or more of the sinus, there may result
Lindsay JR, Lawson LJ. CHICAGO LARYNGOLOGICAL AND OTOLOGICAL SOCIETY. Arch Otolaryngol. 1948;47(5):693–702. doi:10.1001/archotol.1948.00690030719014
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