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.


Paget’s disease of bone

Form of Paget’s disease, a chronic rheumatic disease that alters the bone remodeling process. Viral infections may cause Paget’s disease of bone, and some people with the disease have certain genes. Bones recycle and rebuild improperly in Paget’s disease of bone, leading to bones that are weak, fragile, too large, or shaped incorrectly. The disease usually affects bones of the legs, pelvis, skull, and spine. Bone pain is the most common symptom, and the disease may cause broken bones, painful pinched nerves, or even hearing loss. Treated with bisphosphonates to help protect bone strength.

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Unpleasant sensation associated with actual or potential tissue damage and mediated by specific nerve fibers to the brain, where its conscious appreciation may be modified by various factors.

Pain management

Treatment of pain, which includes medications, techniques such as biofeedback, and complementary and alternative medicine methods.

Parathyroid hormone

Peptide hormone formed by the parathyroid gland; raises the serum calcium levels when administered parenterally by causing bone resorption, reducing renal clearance of calcium, and increasing efficiency of calcium absorption in the intestine.

Patient Activity Scale (PAS)/Patient Activity Scale II (PAS-II)

The PAS and PAS-II are simple to use composite scores that use patient-derived data without provider effort, which makes the feasibility of the measure very good for use in daily clinical care. The PAS and PAS-II include a patient assessment of pain on a 10-cm visual analog scale (VAS), patient global assessment on a 10-cm VAS, and the Health Assessment Questionnaire (HAQ) for PAS or HAQ-II for PAS-II.

Patient-reported outcomes

Any report of the status of a patient’s health condition that comes directly from the patient, without interpretation of the patient’s response by a clinician or anyone else.

Physical activity

Any body movement produced by muscles that results in energy expenditure.

Physical examination

Exam by means such as visual inspection, palpation, percussion, and auscultation to collect information for diagnosis.

Physical therapy

Profession concerned with promotion of health; with prevention of physical disabilities; with evaluation and rehabilitation of persons disabled by pain, disease, or injury; and with treatment by physical therapeutic measures as opposed to medical, surgical, or radiologic measures.

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Polyarteritis nodosa (PAN)

Segmental inflammation, with infiltration by eosinophils, and necrosis of medium-sized or small arteries. More common in males, with varied symptoms related to involvement of arteries in the kidneys, muscles, gastrointestinal tract, and heart.

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