Related Experiment Video
Updated: Jul 16, 2026

Rapid Generation of Amyloid from Native Proteins In vitro
Published on: December 5, 2013
[A rare concurrence of polymyalgia rheumatica and AA-amyloidosis]
S G Radenska-Lopovok1, O N Kotenko2, N F Frolova2
1I.M. Sechenov First Moscow State Medical University, Moscow, Russia; Russian Medical Academy of Postgraduate Education, Ministry of Health of the Russian Federation, Moscow, Russia.
Abstract:
Polymyalgia rheumatica (PMR) is a rare chronic inflammatory disease. It predominantly affects the elderly. The disease has a slow onset, pain and stiffness in the muscles of the shoulder and pelvic girdle, fever, weight loss, and a high acute-phase inflammatory response. The disease is concurrent with giant cell arteritis in a quarter of cases, which allows some authors to consider them as two different manifestations of the same pathological process. The kidneys are rarely involved. This disease is rarely complicated by AA amyloidosis. The authors describe a case of RPM in a patient who has developed secondary AA amyloidosis.
Insights
Polymyalgia rheumatica (PMR), a rare inflammatory condition affecting the elderly, can rarely lead to AA amyloidosis. This case highlights a patient with PMR who developed secondary AA amyloidosis, an uncommon complication.
Area of Science:
- Rheumatology
- Nephrology
- Pathology
Background:
- Polymyalgia rheumatica (PMR) is a rare chronic inflammatory disorder primarily affecting older adults.
- PMR presents with gradual onset of shoulder and pelvic girdle muscle pain and stiffness, often accompanied by systemic symptoms like fever and weight loss.
- While kidney involvement and AA amyloidosis are rare in PMR, giant cell arteritis co-occurs in approximately 25% of cases.
Related Concept Videos
Amyloid Fibrils
Amyloid deposits were observed as early as 1639 in the liver and the spleen. In 1854, Rudolph Virchow performed iodine staining, normally used to...
Amyloid Fibrils
Amyloid deposits were observed as early as 1639 in the liver and the spleen. In 1854, Rudolph Virchow performed iodine staining, normally used to...
Myasthenia Gravis: Overview and Treatment
These antibodies interfere with the function of the nicotinic receptors in three ways: by binding to the receptor and disrupting acetylcholine binding; by causing cross-linking of receptors which leads...
Rheumatic Heart Disease I: Introduction
Atypical Pneumonia
Myasthenia Gravis ll: Pathophysiology

