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[Polymyalgia rheumatica: diagnostic and therapeutic issues of an apparently straightforward disease.]
1Ambulatorio Interdistrettuale di Reumatologia e Servizio di Reumatologia Geriatrica, ex Ospedale "Mariano Lauro", Sant'Agnello (NA), Distretto Sanitario 59 ASL NA 3 Sud.
Abstract:
Polymyalgia rheumatica (PMR) is an inflammatory disease characterized by aching and stiffness in the girdles, which affects typically people over 50 years old and could overlap with giant cell arteritis (GCA) in about 15-20% of cases. Although the diagnosis of PMR is usually considered straightforward, clinicians facing this disease should be aware of its atypical manifestations, which can hamper the correct identification of PMR and, conversely, should be aware of other diseases which may present with polymyalgic features. The aim of this review is to synthetize current knowledge about clinical presentations of PMR, the differential diagnoses, the relationship with cancer, the clues to the presence of a concomitant GCA, the role of ultrasonography at the onset and in the follow-up and, finally, treatment approaches. Besides evidence from the literature, this review will highlight some "tips&tricks" useful in everyday clinical practice. The awareness of the different presentations and pitfalls of PMR could improve patients' management and avoid complications consequent upon unrecognized diseases or, conversely, overtreatment.
Insights
Polymyalgia rheumatica (PMR) is an inflammatory condition causing pain and stiffness, often affecting those over 50. Recognizing atypical presentations and differential diagnoses is key for accurate patient management.
Area of Science:
- Rheumatology
- Internal Medicine
- Clinical Immunology
Background:
- Polymyalgia rheumatica (PMR) is an inflammatory disorder affecting individuals over 50, causing girdle pain and stiffness.
- PMR can overlap with giant cell arteritis (GCA) in 15-20% of cases.
- While often straightforward, PMR diagnosis can be complicated by atypical presentations and mimics.
Purpose of the Study:
- To review current knowledge on PMR clinical presentations.
- To discuss differential diagnoses and the relationship between PMR and cancer.
- To outline diagnostic clues for concomitant GCA, the role of ultrasonography, and treatment strategies.
Main Methods:
- Literature synthesis of current knowledge on PMR.
- Highlighting clinical "tips and tricks" for practical application.
- Reviewing diagnostic criteria and imaging modalities.
Main Results:
- PMR diagnosis requires awareness of diverse clinical scenarios.
- Differential diagnoses include various rheumatologic and non-rheumatologic conditions.
- Ultrasonography aids in early diagnosis and monitoring of PMR and GCA.
Conclusions:
- Understanding PMR's varied presentations improves patient management.
- Distinguishing PMR from mimics prevents misdiagnosis and overtreatment.
- Early and accurate diagnosis of PMR and associated conditions like GCA is crucial.
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