Related Experiment Video
Updated: Jun 2, 2026

Automated Joint Space Detection Improves Bone Segmentation Accuracy
Published on: November 28, 2025
Imaging of polymyalgia rheumatica: indications on its pathogenesis, diagnosis and prognosis
Dario Camellino1, Marco A Cimmino
1Dipartimento di Medicina Interna, Clinica Reumatologica, Università di Genova, Viale Benedetto XV, 6, 16132 Genova, Italy.
Objectives:
Imaging is one of the most appealing techniques to explore PMR, a disease whose causes, development mechanisms and anatomical targets of inflammatory damage are still scarcely known. This review is concerned with an appraisal of PMR with different imaging modalities with a view to highlighting possible clues to its pathogenesis, diagnosis and prognosis.
Methods:
A systematic literature research was performed searching PubMed until July 2010. The Cochrane Library was searched for the relevant reviews, and the abstracts of the ACR and European League Against Rheumatism congresses of the period 2005-10 were reviewed.
Results:
A total of 1059 papers were retrieved, 46 of which were selected at the end of the review process; 6 of them were concerned with two different imaging techniques. Of these papers, 6 (11.5%) were concerned with conventional radiology; 8 (15.4%) with scintigraphy; 17 (32.7%) with ultrasonography (US); 15 (28.8%) with MRI; and 6 (11.5%) with PET. MRI, US and PET appeared to be the most promising imaging techniques. Bilateral subacromial bursitis, biceps long head tenosynovitis and trochanteric bursitis were particularly consistent findings. In addition, MRI and PET showed interspinous bursitis and PET frequently showed large-vessel vasculitis. Few papers have addressed the role of imaging for diagnosis, differential diagnosis and prognosis of PMR.
Conclusions:
Imaging plays an important role in the comprehensive evaluation of PMR, including its pathogenesis, diagnosis and prognosis. Most of its potential is still unexplored, which fact should stimulate further research.
Insights
Imaging techniques like MRI, ultrasonography, and PET offer promising insights into polymyalgia rheumatica (PMR) pathogenesis, diagnosis, and prognosis. Further research is needed to fully explore their potential in evaluating this inflammatory disease.
Area of Science:
- Rheumatology
- Medical Imaging
Background:
- Polymyalgia rheumatica (PMR) remains poorly understood regarding its causes, development, and inflammatory targets.
- Imaging modalities offer potential for exploring PMR's underlying mechanisms and clinical aspects.
Purpose of the Study:
- To review and appraise different imaging techniques for evaluating PMR.
- To identify imaging clues for PMR pathogenesis, diagnosis, and prognosis.
Main Methods:
- Systematic literature search of PubMed up to July 2010.
- Inclusion of Cochrane Library reviews and congress abstracts (2005-2010).
Main Results:
- 46 papers selected from 1059 retrieved.
- Ultrasonography (US), MRI, and PET were identified as promising imaging techniques.
- Consistent findings included bursitis and tenosynovitis; PET also showed vasculitis.
Conclusions:
- Imaging is crucial for comprehensive PMR evaluation, aiding in understanding pathogenesis, diagnosis, and prognosis.
- Significant potential of imaging in PMR remains unexplored, warranting further investigation.
Related Concept Videos
Rheumatic Heart Disease II: Clinical Manifestations and Diagnostic Studies
Myocarditis II: Clinical Features and Diagnostic Tests
Cardiomyopathy IV: Restrictive Cardiomyopathy
Pericarditis II: Clinical Features and Diagnostic Tests
Imaging Studies for Cardiovascular System IV: CMRI
Rheumatic Heart Disease III: Medical Management