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Pannus
Pannus A vascular tissue which arises in a rheumatoid joint at the junction between articular cartilage, synovium and capsule. May adhere to joint surface and extend across it.
RELATED TERMS--------------------------------------
Vascular
Pertaining to blood vessels.
Tissue
Biological tissue is a group of cells that perform a similar function.The study of tissues is known as histology, or, in connection with disease, histopathology.The classical tools for studying the tissues are the wax block, the tissue stain, and the optical microscope, though developments in electron microscopy, immunofluorescence, and frozen sections have all added to the sum of knowledge in the last couple of decades.
Joint
Where the ends of two or more bones meet.
Cartilage
A firm, flexible connective tissue. In vertebrates, the cartilage forms the skeleton in the early stages of development, after which it is largely replaced by bone. Some cartilage remains at the joints to give flexibility and support.
Synovium
Thin membrane (normally one cell thick) which is found within the joint capsule. Produces synovial fluid which lubricates and nourishes the joint cartilage. Becomes inflamed and thickened in inflammatory arthritis such as rheumatoid disease.
Capsule
The thick membrane that joins bones making up a joint.
SIMILAR TERMS--------------------------------------
Panniculitits
A rare, multifactorial inflammatory condition involving subcutaneous fat.
Panniculus
A layer of membrane.
PREVIOUS AND NEXT TERMS--------------------------------------
Pulpectomy
Complete removal of the pulp (commonly done in children's teeth).
Pyorrhea
Older term for periodontal (gum) disease.
Paget's disease
A disease characterised by accelerated bone turnover. The bone becomes enlarged, hyperaemic and fragile. ('Osteitis deformans')
Palindromic rheumatism
A condition characterised by episodic articular or periarticular pain, often with redness. The pain may be intense but rarely lasts longer than 2 or 3 days and resolves totally afterwards with no sequelae. May ultimately evolve into a more recognisable arthropathy (e.g. rheumatoid arthritis in a proportion of those with rheumatoid factor).
Palmoplantar pustulosis
May occur in SAPHO - see 'SAPHO'.
Pannus
Parvovirus
May cause an arthritis in adults (females mainly) and behaves like rubella. Causes erythema infectiosum (Fifth disease or 'slapped cheek syndrome') in children.
Pathergy
Occurs in Behcet's syndrome. Sterile pustule forms at the site of sterile needle puncture.
Pauciarticular
Refers to an arthropathy with involvement of 4 or fewer joints.
Pelligrini-Steida disease
Pain and calcification at the femoral site of attachment of the medial collateral ligament of the knee - follows injury.
Periostitis
Inflammation involving the periosteum. May result in new bone formation.
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