Peyer's patch

(noun)

Peyer's patches (or aggregated lymphoid nodules) are usually found in the lowest portion of the small intestine, the ileum, in humans.

Related Terms

Examples of Peyer's patch in the following topics:

  • Typhoid Fever

    • Third stage: a number of complications can occur: intestinal hemorrhage due to bleeding in congested Peyer's patches and intestinal perforation in the distal ileum.

  • DNA Oncogenic Viruses

    • Kaposi sarcoma causes patches of abnormal tissue to develop in various area of the body including under the skin, in the lining of the mouth, nose, and throat or in other organs.

  • Cytophaga and Relatives

    • Columnaris disease is characterized by the presence of ulcerations on the skin and the development of fungus-like patches on the gill filaments.

  • Diagnosis and Treatment of Allergy

    • Patch testing is used to help ascertain the cause of skin contact allergy (contact dermatitis).
    • Adhesive patches, usually treated with a number of different commonly allergenic chemicals or skin sensitizers, are applied to the back.

  • Bacterial Polyesters

  • Bacteriorhodopsin

    • Bacteriorhodopsin is an integral membrane protein usually found in two-dimensional crystalline patches known as "purple membrane", which can occupy up to nearly 50% of the surface area of the archaeal cell.

  • MreB and Determinants of Cell Morphology

    • However, this model has been brought into question by three recent publications showing that filaments cannot be seen by electron cryotomography and that GFP-MreB can be seen as patches moving around the cell circumference.