TITLE: Acute Sinusitis SOURCE: Grand Rounds Presentation, UTMB, Dept. of Otolaryngology DATE: March 19, 1997 RESIDENT PHYSICIAN: , Michael E. Prater, M.D. FACULTY: Francis B. Quinn, Jr., M.D. SERIES EDITOR: Francis B. Quinn, Jr., M.D. Return to Grand Rounds Index "This material was prepared by resident physicians in partial fulfillment of educational requirements established for the Postgraduate Training Program of the UTMB Department of Otolaryngology/Head and Neck Surgery and was not intended for clinical use in its present form. It was prepared for the purpose of stimulating group discussion in a conference setting. No warranties, either express or implied, are made with respect to its accuracy, completeness, or timeliness. The material does not necessarily reflect the current or past opinions of members of the UTMB faculty and should not be used for purposes of diagnosis or treatment without consulting appropriate literature sources and informed professional opinion." ANATOMY: There are eight paranasal sinuses, four on each side of the midline. They are the paired frontal, ethmoidal (anterior and posterior), maxillary and sphenoidal sinuses. They are lined with a pseudostratisfied columnar (respiratory) epithelium which is continuous with the nasal mucosa. The lining provides a mucous secretion which traps bacteria and subsequently extrudes the mucous and bacteria through the sinus ostia to be swallowed or expectorated. Under normal conditions, the sinuses are air filled and communicate directly with the nasal passages through patent ostia. | |
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