Arthritis

Haemochromatosis (or hemochromatosis) type 1 (also HFE hereditary haemochromatosis or HFE-related hereditary haemochromatosis) is a hereditary disease characterized by excessive intestinal absorption of dietary iron resulting in a pathological increase in total body iron stores.

Gout is usually characterized by recurrent attacks of inflammatory arthritis—a red, tender, hot, and swollen joint.

Juvenile idiopathic arthritis (JIA), also known as juvenile rheumatoid arthritis (JRA), is the most common form of arthritis in children and adolescents.

Osteoarthritis (OA) is a type of joint disease that results from breakdown of joint cartilage and underlying bone.

Familial Mediterranean fever (FMF), also known as Armenian disease, is a hereditary inflammatory disorder.

Psoriatic arthritis (also arthritis psoriatica, arthropathic psoriasis or psoriatic arthropathy) is a type of inflammatory arthritis that will develop in between 6 and 42% of people who have the chronic skin condition psoriasis.

Hypermobility describes joints that stretch further than normal.

Rheumatoid arthritis (RA) is a long-lasting autoimmune disorder that primarily affects joints.

Granulomatosis with polyangiitis (GPA), previously known as Wegener's granulomatosis (WG), is a systemic disorder that involves both granulomatosis and polyangiitis.

Calcium pyrophosphate dihydrate (CPPD) crystal deposition disease, also known as pseudogout and pyrophosphate arthropathy is a rheumatologic disorder with varied symptoms and signs arising from the accumulation of crystals of calcium pyrophosphate dihydrate in the connective tissues.

Systemic onset juvenile idiopathic arthritis (also known as systemic juvenile idiopathic arthritis (sJIA)) is a type of juvenile idiopathic arthritis (JIA) with extra-articular manifestations like fever and rash apart from arthritis.

Protrusio acetabuli is an uncommon defect of the acetabulum.

Palindromic rheumatism (PR) consists of sudden and rapidly developing attacks of arthritis.

Carpometacarpal (CMC) osteoarthritis (OA), also known as trapeziometacarpal osteoarthritis or osteoarthritis at the base of the thumb, is a reparitive joint disease affecting the first carpometacarpal joint (CMC1).

Boutonniere deformity is a deformed position of the fingers or toes, in which the joint nearest the knuckle (the proximal interphalangeal joint, or PIP) is permanently bent toward the palm while the farthest joint (the distal interphalangeal joint, or DIP) is bent back away (PIP flexion with DIP hyperextension).

Epidemic polyarthritis is an outdated term that was formerly used to refer to polyarthritis caused by two mosquito-borne viruses endemic to Australasia: * Barmah Forest virus, which causes Barmah Forest Fever * Ross River virus (RRV), which causes Ross River Fever

Septic arthritis, also known as infectious arthritis or joint infection, is the purulent invasion of a joint by an infectious agent which produces arthritis.

Spondyloarthropathy or spondyloarthrosis refers to any joint disease of the vertebral column.

A rheumatoid nodule is a local swelling or tissue lump, usually rather firm to touch, like an unripe fruit, which occurs almost exclusively in association with rheumatoid arthritis.

Osteoarthritis is a group of mechanical abnormalities resulting in joint destruction, which can occur in the wrist.

Osteolysis is an active resorption of bone matrix by osteoclasts and can be interpreted as the reverse of ossification.

Polyarthritis is any type of arthritis that involves 5 or more joints simultaneously.

Harrison Syndrome is a type of chronic gout associated with presence of tophi.

Adult-onset Still's disease (AOSD) is a rare systemic inflammatory disease characterized by the classic triad of persistent high spiking fevers, joint pain and a distinctive salmon-colored bumpy rash.

PAPA syndrome is an acronym for pyogenic arthritis, pyoderma gangrenosum and acne.

ACR score is a scale to measure change in rheumatoid arthritis symptoms.

Collagen-induced arthritis (CIA) is a condition induced in mice (or rats) to study rheumatoid arthritis.