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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 ...
A Killian–Jamieson diverticulum is an outpouching of the esophagus just below the upper esophageal sphincter. [1] The physicians that first discovered the diverticulum were Gustav Killian and James Jamieson. Diverticula are seldom larger than 1.5 cm, and are less frequent than the similar Zenker's diverticula.
A jejunal diverticulum is a congenital lesion and may be a source of bacterial overgrowth. It may also perforate or result in abscesses. A Killian-Jamieson diverticulum is very similar to a pharyngeal esophageal diverticulum, differing in the fact that the pouching is between the oblique and transverse fibers of the cricopharyngeus muscle. [7]
Zenker's fixative is a rapid-acting fixative for animal tissues. It is employed to prepare specimens of animal or vegetable tissues for microscopic study. It provides excellent fixation of nuclear chromatin , connective tissue fibers and some cytoplasmic features, but does not preserve delicate cytoplasmic organelles such as mitochondria .
It represents a potentially weak spot where a pharyngoesophageal diverticulum (Zenker's diverticulum) is more likely to occur. [1] Eponym
Here are links to possibly useful sources of information about Zenker's diverticulum. PubMed provides review articles from the past five years (limit to free review articles) The TRIP database provides clinical publications about evidence-based medicine. Other potential sources include: Centre for Reviews and Dissemination and CDC
Preparing a cow for udder surgery in field conditions: the physical restraint with a set of ropes is necessary next to xylazine tranquilisation A cat spay. Veterinary surgery is surgery performed on non-human animals by veterinarians, whereby the procedures fall into three broad categories: orthopaedics (bones, joints, muscles), soft tissue surgery (skin, body cavities, cardiovascular system ...
In 1895 he retired from active service. His important discovery of the danger of trichine dates from 1860. In that year he published "Über die Trichinenkrankheit des Menschen" ("On the trichine-illness of humans", in volume XVIII of Virchow's Archiv). Zenker also found Zenker's degeneration and Zenker's diverticulum. [17]