Looking for rheumatic disease types, treatments, and associated rheumatology definitions? From abatacept to WOMAC, learn about common terms related to arthritis and rheumatic and musculoskeletal diseases. Looking for information about MACRA? See MACRA terms and definitions.



Inflammation of the kidneys.


The process of producing images of the structure or activity of the brain or other part of the nervous system by techniques such as magnetic resonance imaging or computerized tomography.


Mature white blood cells in the granulocytic series, formed by myelopoietic tissue of the bone marrow and released into the circulating blood, where they normally represent 54–65% of the total number of leukocytes.

Nonsteroidal antiinflammatory drugs (NSAIDs)

Large number of drugs exerting antiinflammatory (and also usually analgesic and antipyretic) actions; examples include aspirin, acetaminophen, diclofenac, indomethacine, ketorolac, ibuprofen, and naproxen.

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