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A Zenker's diverticulum, also pharyngeal pouch, is a diverticulum of the mucosa of the human pharynx, just above the cricopharyngeal muscle (i.e. above the upper sphincter of the esophagus). It is a pseudo diverticulum or false diverticulum (only involving the mucosa and submucosa of the esophageal wall, not the adventitia), also known as a ...
Diverticula are seldom larger than 1.5 cm, and are less frequent than the similar Zenker's diverticula. As opposed to a Zenker's, which is typically a posterior and inferior outpouching from the esophagus, a Killian–Jamieson diverticulum is typically an anterolateral outpouching at the level of the C5-C6 vertebral bodies, due to a congenital ...
Diverticula are described as being true or false depending upon the layers involved: False diverticula (also known as "pseudodiverticula") do not involve muscular layers or adventitia. False diverticula, in the gastrointestinal tract for instance, involve only the submucosa and mucosa, such as Zenker's diverticulum. [2]
Diverticular disease can present with painless rectal bleeding as bright red blood per rectum. Diverticular bleeding is the most common cause of acute lower gastrointestinal bleeding. [9] However, it is estimated that 80% of these cases are self-limiting and require no specific therapy. [10]
Friedrich Albert von Zenker (13 March 1825 – 13 June 1898) was a German pathologist and physician, celebrated for his discovery of trichinosis. He was born in Dresden , and was educated in Leipzig and Heidelberg .
Zenker fixative is preferred, although formalin fixed tissue can be used. If this is the case, the tissue should be mordanted in Zenkers solution before staining. Most texts recommend mordanting in Zenker fixative overnight at room temperature, but it can be done for 3.5 hours in a 56 to 60 degrees Celsius oven.
Download QR code; Print/export Download as PDF; Printable version; In other projects ... (Zenker's diverticulum) is more likely to occur. [1] Eponym
Zenker is the name of: Friedrich Albert von Zenker (1825–1898) was a German pathologist, who named: Zenker's degeneration; Zenker's diverticulum; Zenker's fixative; Zenker's paralysis; Georg August Zenker (1855–1922), German gardener and naturalist; Hans Zenker (1870–1932), German admiral; Jonathan Carl Zenker (1799–1837), German naturalist