caa a22 4500 467935637 CHVBK 20180406152956.0 cr unu---uuuuu 170328e20060701xx s 000 0 eng 10.1007/s00455-006-9024-9 doi (NATIONALLICENCE)springer-10.1007/s00455-006-9024-9 Is the Anatomical Protrusion on the Posterior Hypopharyngeal Wall Associated with Cadavers of Only the Elderly? [Elektronische Daten] [Shengchun Xu, Lili Tu, Qin Wang, Ming Zhang] Cricopharyngeal bars are commonly seen on a barium swallow radiologic examination and represent the failure of the cricopharyngeus to relax. Traditionally, the bars have been considered as functional or physiologic protrusions. Recently, anatomical cricopharyngeal protrusion has been found in about 30% of cadavers of the elderly, suggesting that such a structural change may become a physical barrier that affects the normal deglutition in a living person. This suggests that such a radiographic finding should be carefully considered when interpreting radiologic and manometrical examinations and managing dysphagia of the elderly. However, the finding of the anatomical cricopharyngeal protrusion was based on the observation of cadavers of the elderly (mean age = 77 years). The aim of this study was to further investigate whether such an anatomical cricopharyngeal protrusion exists in cadavers of other ages. Using the dissection method, we examined 63 human cadavers that were divided into three age groups: young adult (6 females and 10 males, age = 16-24 years old), adult (8 females and 23 males, age = 25-64 years old), and early elderly (5 females and 11 males, age = 65-69 years old). We found that 57 of the 63 cadavers had a smooth mucosal surface on the posterior hypopharyngeal and upper esophageal wall. A slightly thickened posterior muscular wall was observed at the cricoid level in six cadavers (five from the adult group and one from the early elderly group), but its boundary was not clearly identified. Taking the previous reports together, our results suggest that an anatomical cricopharyngeal protrusion is closely associated with the aging process. Springer Science+Business Media, Inc., 2006 Cricopharyngeal bar nationallicence Anatomical cricopharyngeal protrusion nationallicence Pharyngoesophageal junction nationallicence Aging nationallicence Deglutition nationallicence Deglutition disorders nationallicence Xu Shengchun Department of Anatomy, Anhui Medical University, Hefei, China aut Tu Lili Department of Anatomy, Anhui Medical University, Hefei, China aut Wang Qin Department of Anatomy, Anhui Medical University, Hefei, China aut Zhang Ming Department of Anatomy, Anhui Medical University, Hefei, China aut Dysphagia Springer-Verlag 21/3(2006-07-01), 163-166 0179-051X 21:3<163 2006 21 455 https://doi.org/10.1007/s00455-006-9024-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00455-006-9024-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Xu Shengchun Department of Anatomy, Anhui Medical University, Hefei, China aut NATIONALLICENCE 700 1- Tu Lili Department of Anatomy, Anhui Medical University, Hefei, China aut NATIONALLICENCE 700 1- Wang Qin Department of Anatomy, Anhui Medical University, Hefei, China aut NATIONALLICENCE 700 1- Zhang Ming Department of Anatomy, Anhui Medical University, Hefei, China aut NATIONALLICENCE 773 0- Dysphagia Springer-Verlag 21/3(2006-07-01), 163-166 0179-051X 21:3<163 2006 21 455 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer