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paranasal sinus retention cyst
Tuesday 23 March 2021, by
Paranasal sinuses retention cysts; Mucous retention cysts of the paranasal sinuse
Definition : The paranasal sinuses are air-filled cavities covered by a thin mucous membrane that adhere to the periosteum. Retention cysts in paranasal sinuses are common, incidental finding at radiographic examinations and are reported to occur in between 1.4% to 9.6% of the general population.
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