MUCOCELE OF THE FRONTAL AND ETHMOID SINUSES: Evaluation of the Use of Acrylics and Tantalum in the Surgical Treatment

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Abstract
A MUCOCELE of the paranasal sinuses is a closed cavity lined with mucous membrane which continues to secrete mucus and to fill the cavity with these secretions. It is benign histologically, but, because of its relation to important structures and its capacity for expansion, it can be clinically malignant. In its essential pathogenesis, the mucocele begins as a mechanical block to the drainage of the sinus itself or to the glands of its lining mucosa.1The mucosa of the sinus continues to produce its normal mucoid secretions. Lacking the normal outlet, the secretions accumulate and fill the sinus. If the blockage is not relieved, the pressure of accumulating secretions within this expanding mucocele will cause erosion of the sinus wall and result in encroachment on any of the adjacent cavities—the nose, orbit, other sinuses or the intracranial cavity. If extension is into the nose or another sinus, air may pass

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