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arthritis , pl. arthritides (ar-thrI´tis, ar-thrit´i-dez)

Inflammation of a joint or a state characterized by inflammation of joints.articular rheumatism; [G. fr. arthron, joint, + -itis, inflammation]
acute rheumatic a. a. due to rheumatic fever.
atrophic a. obsolete term for a. without new bone formation, now usually called rheumatoid a.
chlamydial a. serous polyarthritis of cattle and sheep from chlamydial infection.
chronic absorptive a. a. accompanied by pronounced resorption of bone with shortening and deformity, especially of the hands; when the deformity is extreme, the condition has also been termed a. mutilans.
chylous a. a. with a high lymph content in synovial fluid, usually due to filariasis.
a. defor´mans rheumatoid a
degenerative a. osteoarthritis
enteropathic a. a form of a. sometimes resembling rheumatoid a. which may complicate the course of ulcerative colitis, Crohn's disease, or other intestinal disease.
filarial a. a. occurring in filariasis, probably due to extravasation of lipid-rich lymph resembling chyle into the joint space.
gonococcal a. joint space infection in humans caused by disseminated Neisseria gonorrhoeae; characteristically monarticular, but may be polyarticular.gonorrheal arthritis;
gonorrheal arthritis gonococcal a
gouty a. inflammation of the joints in gout.
hemophilic a. joint disease resulting from hemophilic bleeding into a joint.
hypertrophic a. osteoarthritis
Jaccoud's a. a rare form of chronic a., reported to occur after attacks of acute rheumatic fever, characterized by an unusual form of bone erosion of the metacarpal heads and by ulnar deviation of the fingers; it resembles rheumatoid a., but with less overt inflammation, and rheumatoid factor is absent.Jaccoud's arthropathy;
juvenile a. , juvenile rheumatoid a. chronic a. beginning in childhood, most cases of which are pauciarticular, i.e., affecting few joints. Several patterns of illness have been identified: in one subset, primarily affecting girls, iritis is common and antinuclear antibody is usually present; another subset, primarily affecting boys, frequently includes spinal a. resembling ankylosing spondylitis; some cases are true rheumatoid a. beginning in childhood and characterized by the presence of rheumatoid factor and destructive deforming joint changes, often undergoing remission at puberty. See also Still's disease.juvenile chronic a;
juvenile chronic a. juvenile a
Lyme a. the arthritic manifestation of Lyme disease.
a. mu´tilans a form of chronic rheumatoid a. in which osteolysis occurs with extensive destruction of the joint cartilages and bony surfaces with pronounced deformities, chiefly of the hands and feet; similar changes can occur in some cases of psoriatic a.
neonatal a. of foals bacterial polyarthritis caused by umbilical infections by several bacterial species.
neuropathic a. neuropathic joint
a. nodo´sa rheumatoid a
ochronotic a. osteoarthritis occurring as a complication of ochronosis.
proliferative a. rarely used term for rheumatoid a., based on the characteristic proliferation of the synovial membrane seen in joints affected by the disease.
psoriatic a. the concurrence of psoriasis and polyarthritis, resembling rheumatoid a. but thought to be a specific disease entity, seronegative for rheumatoid factor and often involving the digits. See also a. mutilans.arthropathia psoriatica;
pyogenic a. suppurative a
rheumatoid a. a systemic disease, occurring more often in women, which affects connective tissue; a. is the dominant clinical manifestation, involving many joints, especially those of the hands and feet, accompanied by thickening of articular soft tissue, with extension of synovial tissue over articular cartilages, which become eroded; the course is variable but often is chronic and progressive, leading to deformities and disability.a. deformans, a. nodosa, nodose rheumatism (1);
suppurative a. acute inflammation of synovial membranes, with purulent effusion into a joint, due to bacterial infection; the usual route of infection is hemic to the synovial tissue, causing destruction of the articular cartilage, and may become chronic, with sinus formation, osteomyelitis, deformity, and disability.purulent synovitis, pyarthrosis, pyogenic a., suppurative synovitis;


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