title: Evaluation of nondistended pyriform sinus without respiratory maneuvers.
abstract: Detection of a nondistended pyriform sinus on cross-sectional imaging studies represents a diagnostic dilemma. The finding may be an inconstant physiologic phenomenon without clinical significance, or it may be due to tissue thickening and lack of pliability related to neoplasia or inflammation. Rescanning during respiratory maneuvers may clarify the anatomy, but full patient cooperation is needed. We demonstrate a method (turning the patient's head away from the side of the nondistended sinus) that induces distention of the pyriform sinus but does not require active patient participation.
authors.affiliation: Department of Radiology, Winthrop-University Hospital, Mineola, NY 11501.
authors.forename: D B
authors.initials: DB
authors.lastname: Price
authors.forename: L J
authors.initials: LJ
authors.lastname: Miller
authors.forename: A P
authors.initials: AP
authors.lastname: Price
mesh_terms: D000328:Adult; D002648:Child; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D010614:Pharynx / Q000000981:diagnostic imaging* / Q000473:pathology; D012119:Respiration / Q000502:physiology; D012399:Rotation; D014057:Tomography, X-Ray Computed