Publications of Faculty of Medicine:STUDY OF NORMAL ANATOMY OF POST-CRICOID REGION OF THE PHARYNX AND CERVICAL OESOPHAGUS BY CT AND MR IMAGING: Abstract

Title:
STUDY OF NORMAL ANATOMY OF POST-CRICOID REGION OF THE PHARYNX AND CERVICAL OESOPHAGUS BY CT AND MR IMAGING
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Abstract:

Abstract This study aimed to define the normal position of the oesophagus and the appearance of the postcricoid region. oesophageal verge and upper oesophageal region at CT and MR imaging. It was conducted on 55 consecutive (Cl? scans of the neck individual patients (30 males and 25 females) with age range 18- 65 years. MR images were in the transverse plane with T1 pulse sequence. Patients who have dysphagia. clinical or imaging finding suggestive of pharyngeal or oesophageal abnormalities or history and signs of head or neck malignancy were excluded. The location of the oesophagus and the appearance of the postcricoid region. oesophageal verge, upper oesophageal region and the visiblity of the fat planes at CT and MR imaging were determined. The oesophagas was Located centrally in 49 cases (89.1%) at CT versus 40 cases (77.7%) at MR imaging, at the oesophageal verge. Just below the oesophageal verge, the oesophagas typically coursed to the left side in all cases except in 4 cases (7.3%) at both CT and MR imaging, where it is shifted to the right. The entire thickness of the muscular wall in the postcricoid region varied little through its cephalocouldal extent, but at the oesophageal verge, there was an a brupt change. then the cervical oesophagus showed little change at 1 cm and 2 cm below the oesophageal verge. The visibility of the intramural fat planes. is diminished cauda/y in the postcricoid region with slightly higher rate in CT than in MRS. Also, the fat planes around the postericoid region were visible more frequent on both right and left sides than the posterior one, and more frequent on the CT