1/31/2024 0 Comments Middle pharyngeal constrictor![]() The trumpet player with a swelling in the neck. Pharyngocele: CT findings - a case report. Duarte R, Miranda D, Pereira T, Gomes S, Vasconcelos M. Restrepo S, Villamil MA, Rojas IC, Palacios E. (2013) Acta otorrinolaringologica espanola. Oishi Konari M, Zapater Latorre E, Mosquera Lloreda N, Basterra Alegría J. Lateral pharyngeal diverticulum: A report of 3 cases. José Maria Porcaro-Salles, João Marcos Arantes Soares, Alexandre de Andrade Sousa, Gustavo Meyer, Marco Homero de Sá Santos. (2018) Journal of Medical Imaging and Radiation Oncology. Bullfrog swallow: Bilateral pharyngocoeles. Hao Xiang, Jason Han, William E Ridley, Lloyd J Ridley. Morphologically is similar to findings on CT. Dynamic real-time and 3D MRI can allow for better visualization of the anatomy, specific location and characteristics of the lesion 4,9. It is typically seen as a parapharyngeal gas sac that communicates with the base of the piriform sinus or the lateral side of the vallecula 5. Similar to radiographs, it is best appreciated during a Valsalva maneuver after ingestion of positive oral contrast medium 7. CTĬT and laryngoscopy are the diagnostic tools of choice 4,5,7. In bilateral pharyngoceles, a "bullfrog appearance" can be appreciated on frontal cervical x-rays 1. Pharyngocoeles are best identified on the frontal barium swallow x-ray during a Valsalva maneuver 2 before and after contrast administration. Identification of pharyngoceles on ultrasound can be difficult in the presence of thyroid calcification 8,9. In pharyngoceles, gas communicates with piriform sinuses distinguishing it from laryngoceles which have gas communicating with laryngeal saccules 8. Pharyngocoeles may be seen on a transverse sonogram at the level of the ventricular folds 8 as a hyperechoic gas pocket which enlarges during a Valsalva maneuver 8. A minority of patients have congenital causes thought to be due to branchial cleft anomalies 2,3,7. Loss of muscle elasticity with aging and previous surgeries can contribute to the wall weakness 2-5.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |