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Chronic cough A pharyngeal pouch or Zenker's diverticulum is a pulsion diverticulum that arises between the cricopharyngeus and thyropharyngeus muscles of the inferior pharyngeal constrictor. As pharyngeal pouches usually arise in the elderly, their management is often determined by the general fitness of the patient and the presence of any co-morbid conditions. Surgery for a pharyngeal pouch, particularly if an external approach is used, is often associated with a significant risk of complications and peri-operative mortality rates of 2% have been reported. www.surgical-tutor.org.uk /tutorials/pharyngeal.htm   (485 words)

I. Embryology. 12. The Branchial Region. Gray, Henry. 1918. Anatomy of the Human Body. The first pharyngeal pouch is prolonged dorsally to form the auditory tube and the tympanic cavity; the closing membrane between the mandibular and hyoid arches is invaded by mesoderm, and forms the tympanic membrane. From the third pharyngeal pouch the thymus arises as an entodermal diverticulum on either side, and from the fourth pouches small diverticula project and become incorporated with the thymus, but in man these diverticula probably never form true thymus tissue. From the fifth pouches the ultimobranchial bodies originate and are enveloped by the lateral prolongations of the median thyroid rudiment; they do not, however, form true thyroid tissue, nor are any traces of them found in the human adult. www.bartleby.com /107/13.html   (2206 words)

ENT Nursing.com - ear infections, hearing aids, inner ear infections A pharyngeal pouch (also known as a Zenker's diverticulum) is an out pouching of the pharyngeal mucosa through the muscle wall of the organ. Pouches are typically painless and pain may signify ulceration of the mucosa or carcinoma within the pouch. The pouch may be made to fill with a Valsalva manoeuvre at the time of investigation causing contrast to track into the pouch. www.entnursing.com /pharyngealpouch.htm   (1154 words)

Text for Pharyngeal Arch Development   (Site not responding. Last check: 2007-10-10) The approximation of the ectoderm of the pharyngeal cleft with the endoderm of the pharyngeal pouch forms the pharyngeal membrane. The 2nd pharyngeal pouch forms the wall of the pharynx at the level of the palatine tonsils. The 4th pharyngeal pouch forms in the wall of the pharynx at the level of the laryngeal aditus. isc.temple.edu /marino/embryology/parch98/parch_text.htm   (1881 words)

Pharyngeal pouch - photoalbum   (Site not responding. Last check: 2007-10-10) This is protrusion of the mucosa through the Killian's dehiscence, a weak area of the posterior pharyngeal wall between the oblique fibres of thyropharyngeus and the transverse fibres of the cricopharyngeus at the lower end of the inferior constrictor muscle. Further enlargement of the pouch will cause a gurgling noises in the neck with swallowing and the patients may present with a swelling in the neck. The swelling is usually on the left side of the neck because as the pouch enlarges the resistance of the vertebral column behind cause it to turn laterally to the left. www.edu.rcsed.ac.uk /photoalbum/ph50.htm   (832 words)

Interventional procedures consultation document - endoscopic stapling of pharyngeal pouch Pharyngeal pouch, which is also known as Zenker's diverticulum, occurs when a piece of the pharyneal lining herniates through the muscles of the pharyngeal wall. A pharyngeal pouch may cause difficulty in swallowing or cough, and sometimes causes respiratory problems because of aspiration of the pouch contents into the lungs. Endoscopic stapling of pharyngeal pouch involves stapling of the opening of the pharyngeal pouch using a specially designed endoscope, while the patient is under general anaesthetic. www.nice.org.uk /IP024consultation   (716 words)

Joey in pouch and pharyngeal pouch including micro pouch   (Site not responding. Last check: 2007-10-10) Jock pouch in http://human-anatomical-pouches.xdrx.wolomin.pl human anatomical pouches. http://miko-coffee-pouch-pack.xdrx.wolomin.pl miko coffee pouch pack and crux pouch. http://golf-pouch-bag.xdrx.wolomin.pl golf pouch bag and wrist pouch. www1.omnitel.net /goldfish/wwwboard/messages/10248.html   (1558 words)

Functional evidence for a single endodermal origin for the thymic epithelium - Nature Immunology Formation of a third pharyngeal cleft derivative, the cervical sinus, was noted at E10.5−E11, and this subsequently underwent complex proliferation and rotation, such that ectodermally derived cells became attached to the third pharyngeal pouch at around E11 and covered the third pouch endoderm by E11.5−E12.0. This suggests that the pharyngeal pouch and cleft separate after contact and that both this process and release of the thymic primordium from the pharynx entail an apoptotic mechanism. (c,e,g) Junction of the pharyngeal pouch and pharynx. www.nature.com /ni/journal/v5/n5/full/ni1064.html   (6172 words)

Pharyngula   (Site not responding. Last check: 2007-10-10) Expression of Gcm-2 in the parathyroid gland and the pharyngeal pouches in the chick. At stage 24, expression in the third and fourth pouches is concentrated in a region dorsal of the pharyngeal pouches and is lost from the second pouch (G). This gene is expressed in the internal gill buds protruding from the pharyngeal pouches in stage-27 dogfish embryos (17). pharyngula.org /index/weblog/deep_homologies_in_the_pharyngeal_arches   (1648 words)

Stapler failure in pharyngeal diverticulectomy. Pharyngeal pouch (Zenker’s diverticulum) is a pulsion diverticulum which originates from Killian’s dehiscence between the cricopharyngeus and thyropharyngeus muscles. For the majority of patients, however, excision of the pouch through an incision in the neck is the treatment of choice, usually combined with a cricopharyngeal myotomy. The pouch was transacted flush with the stapler according to the manufacturers’ instructions (Operation of the Proximate Reloadable Linear Stapler, Ethicon Ltd.) and the stapler removed. www.rcsed.ac.uk /journal/vol43_1/4310011.htm   (1103 words)

[No title]   (Site not responding. Last check: 2007-10-10) The fourth pouch is not present in the 17 somite embryo H951 or the 14-somite embryo 4529. The fourth pharyngeal pouch does not reach the ectoderm and form a membrane (likewise in the mouse) therefore it is not considered by some as a pouch but merely the primordium of the lateral thyroid or superior parathyroid. The buds are derived from the first pharyngeal arch mesenchyme and the therefore the innervation of this area of the tongue is via the trigeminal (V) The oesophagus acquires distinct muscular and submucous layers, Streeter G.L., (1948) According to O’Rahilly R., Müller F. p. www.ana.ed.ac.uk /anatomy/humat/notes/embryo/alimentary/gut.htm   (2037 words)

[No title] The regions between the pouches and the grooves are known as branchial arches and consist of mesenchyme. The recurrent laryngeal nerve is the nerve associated with the 6th arch and the intrinsic laryngeal muscles.The superior laryngeal nerve of the vagus (specifically the external branch) innervates the cricothyroid, the levator palatini, and the inferior constrictors of the pharynx with SVE fibers. The superior pair of parathyroids form from the 4th pouch and are embedded in the thyroid at a superior position.The principal cells of the parathyroid synthesize parathorhome (as early as the embryonic period) which regulates fetal calcium metabolism. kumc.edu /research/medicine/pharmacology/CAI/webCAI/anatomy/em11.wbc   (1653 words)

barium swallow showing a pharyngeal pouch   (Site not responding. Last check: 2007-10-10) This is a barium swallow showing a pharyngeal pouch which may present as dysphagia and regurgitation. The pouch is identified by acriflavine colour lying beneath the fascia and behind the pharynx. The pouch is dissected from the surrounding area until the lateral pharyngeal wall. www.edu.rcsed.ac.uk /photoalbum/ph130.htm   (520 words)

Endoscopic stapling of pharyngeal pouch Pharyngeal pouch, which is also known as Zenker's diverticulum, occurs when the pharyneal lining herniates through the muscles of the pharyngeal wall. A pharyngeal pouch may cause difficulty in swallowing or cough, and sometimes causes respiratory problems because of aspiration of the pouch contents. For small pouches, there are less radical procedures involving cutting the muscle (the cricopharyngeus) around the neck of the pouch and sometimes inverting the pouch. www.nice.org.uk /page.aspx?o=56133   (272 words)

Intermittent absorption of warfarin caused by an unrecognized pharyngeal pouch -- Ong and Slater 65 (767): 660 -- ... Intermittent absorption of warfarin caused by an unrecognized pharyngeal pouch pharyngeal pouch and a history of tablet regurgitation was obtained. pharyngeal pouches and the importance of this complication are discussed. www.postgradmedj.com /cgi/content/abstract/65/767/660   (109 words)

The Role of Hoxa3 Gene in Parathyroid Gland Organogenesis of the Mouse -- Kameda et al. 52 (5): 641 -- Journal of ... pharyngeal pouch in mice (Cordier and Haumont 1980 Frontal sections of pharyngeal region in wild-types (+/+, A,B) and Hoxa3 homozygous mutants (–/–, C,D) at E 11.5, stained with hematoxylin–eosin (A,C) or immunostained with the monoclonal anti-ß-galactosidase antibody (B,D). In the wild types, the third pharyngeal arch merges into the fourth one, whereas in the mutants (C,D) the fissure-like third pharyngeal pouch (P3) continuing to the pharynx (P) separates the third pharyngeal arch (PA3) from the fourth one. www.jhc.org /cgi/content/full/52/5/641   (3885 words)

[No title]   (Site not responding. Last check: 2007-10-10) The future area is recognised in the 17-somite embryo H951 by the presence of the third pharyngeal pouch, but the area is not delineated caudally by a groove so the arch is not said to be present, Wen C.I., (1928). The fourth branchial pouch is continuous ventrally with a contentious ‘fifth pouch’-considered the primordium of the ultimobranchial body or lateral thyroid. According to Yokoh Y., (1968) the 3rd and 4th branchial pouches have detached from the pharynx forming the ultimobranchial bodies, parathyroids and thymus glands. www.ana.ed.ac.uk /anatomy/database/humat/notes/embryo/branchi.htm   (2431 words)

Surgical interventions for pharyngeal pouch (Cochrane Review)   (Site not responding. Last check: 2007-10-10) Pouches may give rise to difficulty in swallowing, sensation of a lump in the throat or of food sticking in the throat and may lead to troublesome regurgitation of food. Food may enter the pouch rather than passing down the oesophagus and this and regurgitation may result in weight loss, hoarseness of voice and/or recurrent chest infections. The management of patients with a pharyngeal pouch may be either conservative or surgical. www.update-software.com /abstracts/AB004459.htm   (449 words)

Australian Journal of Oto-Laryngology: Endoscopic stapling diverticulotomy for the treatment of pharyngeal pouch   (Site not responding. Last check: 2007-10-10) A retrospective review of pharyngeal pouch surgery managed by endoscopic stapling diverticulotomy over a five-year period was performed to establish current practice and set guidelines for future management. The pouch is cleared and a Hopkins telescope is used to inspect it to exclude a carcinoma. However he was found to have a small pouch and it was felt that the diverticulotomy had not performed an adequate cricopharyngeal myotomy and thus an external cricopharyngeal myotomy was performed which resolved his symptoms. www.findarticles.com /p/articles/mi_qa3868/is_200101/ai_n8929297   (1383 words)

British Society of Gastroenterology Pharyngeal pouch (Zenker's diverticulum) is a false diverticulum of the pharyngeal mucosa that occurs just above the cricopharyngeal sphincter, in an area of weakness between the cricopharyngeus and the inferior pharyngeal constrictor muscle (figure 2). The estimated prevalence of this condition is 1 in 100,000, mainly occurring in older subjects. The pouch probably arises as a result of relative obstruction caused by muscular incoordination of the cricopharyngeal sphincter. www.bsg.org.uk /clinical_prac/sep_04/sep04_04.htm   (105 words)

Eya1 is required for the morphogenesis of mammalian thymus, parathyroid and thyroid -- Xu et al. 129 (13): 3033 -- ... the expression of Hox and Pax genes in the pouch endoderm is expression was significantly reduced in the pouch endoderm (arrows) and surface ectoderm (arrowheads, L) in the 2nd, 3rd and 4th pharyngeal regions (a2-a4). pharyngeal arches and pouches in the absence of Eya1. dev.biologists.org /cgi/content/full/129/13/3033   (7373 words)

Chapter 11   (Site not responding. Last check: 2007-10-10) Internally between the arches, are extensions of the pharynx called pharyngeal pouches. The second pharyngeal pouch is associated with development of the palatine tonsil. The thymus is derived from the third pair of pharyngeal pouches, and the parathyroid glands are formed from the third and fourth pairs of pharyngeal pouches. www.internetimpact.com /~iimpact/biology/embryo/chapters/c11.htm   (472 words)

IngentaConnect Endoscopic stapling for pharyngeal pouch: Does it make the cut?   (Site not responding. Last check: 2007-10-10) Endoscopic stapling to treat pharyngeal pouch is a relatively new technique with the potential to reduce the morbidity associated with the open approach for pharyngeal pouch. The aim of the present study was to determine the outcome associated with endoscopic stapling of pharyngeal pouch in an Australian setting. All patients admitted for endoscopic stapling for a pharyngeal pouch between 1998 and 2002 by surgeons from the Adelaide and Flinders Universities were identified, and their medical records were reviewed for clinical and operative details. api.ingentaconnect.com /content/bsc/ans/2004/00000074/00000003/art00011   (423 words)

UNSW Embryology- Head and Neck Development- Stage 13/14 A6: 1st, 2nd arches, grooves and pouches on R. Inferior glossopharyngeal and facial ganglia on left. A3,A4: Trigeminal ganglion, dorsal end of 1st pharyngeal arch, vestibulocochlear ganglion (rostral to otocyst), superior glossopharyngeal ganglion. Rathke's pouch (derived from ectoderm anterior to the buccopharyngeal membrane). embryology.med.unsw.edu.au /notes/head3.htm   (653 words)

Pax9-deficient mice lack pharyngeal pouch derivatives and teeth and exhibit craniofacial and limb abnormalities.   (Site not responding. Last check: 2007-10-10) Pax9-deficient mice lack pharyngeal pouch derivatives and teeth and exhibit craniofacial and limb abnormalities. Pax9-deficient mice lack pharyngeal pouch derivatives and teeth and exhibit craniofacial and limb abnormalities.In Pax9-deficient embryos tooth development is arrested at the bud stage. At this stage, Pax9 is required for the mesenchymal expression of Bmp4, Msx1, and Lef1, suggesting a role for Pax9 in the establishment of the inductive capacity of the tooth mesenchyme. www.pdg.cnb.uam.es /UniPub/iHOP/gp/1563244.html   (226 words)

British Society of Gastroenterology Barium swallow showed the presence of a pharyngeal pouch. Passage of the duodenoscope failed because it was not possible to get past this large pharyngeal pouch. Occurs between the inferior pharyngeal and cricopharyngeus muscles. www.bsg.org.uk /clinical_prac/sep_04/sep04_03.htm   (113 words)

Surgical interventions for pharyngeal pouch A pharyngeal pouch is a pocket which can develop in the pharynx (throat), just above the entrance to the oesophagus (gullet). A pharyngeal pouch is treated by surgery which may either be 'open' (through an incision in the neck) or 'endoscopic' (through the mouth). A pharyngeal pouch is an out-pouching or pocket that develops from the posterior wall of the pharynx just above the entrance to the oesophagus (gullet). www.cochrane.org /reviews/en/ab004459.html   (510 words)

Pharyngeal pouch Information   (Site not responding. Last check: 2007-10-10) Pouch options include 1- or 2-lane plowed bottom stand-up; 4-edge sealed side gusset; and 3-side-seal. These fun pouches hold seeds to help teach about faith and are perfect for handouts or as a lesson activity. Each file comes with two pouches and on the back of each pouch there is quote from Alma 32:28 as... 1pouchesparacelulares16.info /.../pharyngeal-pouch.html   (534 words)

Pharyngeal pouch (Zenker's diverticulum) -- Siddiq et al. 77 (910): 506 -- Postgraduate Medical Journal Pharyngeal pouches are readily diagnosed on barium studies, which should delineate the pouch well. Pharyngeal (Zenker's diverticulum) is a disorder of upper esophageal sphincter opening. The role of endoscopic stapling diverticulotomy in recurrent pharyngeal pouch. pmj.bmjjournals.com /cgi/content/full/77/910/506   (3314 words)

The Role of Hoxa3 Gene in Parathyroid Gland Organogenesis of the Mouse -- Kameda et al. 52 (5): 641 -- Journal of ... of derivatives of the third branchial arch and pouch. region of the third pharyngeal pouch of wild-type embryos. pharyngeal pouch to form the parathyroid rudiment and has no www.jhc.org /cgi/content/abstract/52/5/641   (293 words)

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