Giant cell arteritis-a systemic spectrum including temporal arteritis and polymyalgia rheumatica

Area of Science:

• Rheumatology
• Internal Medicine
• Geriatrics

Background:

• Polymyalgia rheumatica (PMR) and giant cell arteritis (GCA) are closely linked inflammatory disorders.
• These conditions pose significant health risks to the elderly population.
• Their exact causes are unknown, but they may be different manifestations of a single underlying disease.

Purpose of the Study:

• To highlight the association between PMR and GCA.
• To emphasize the importance of early diagnosis and treatment in the elderly.
• To discuss potential pathogenetic mechanisms and clinical presentations.

Main Methods:

• Review of current evidence on PMR and GCA pathogenesis.
• Discussion of clinical manifestations, including subtle and atypical presentations.
• Emphasis on diagnostic challenges and the role of clinical suspicion.

Main Results:

• Autoimmune involvement of the internal elastic lamina in arteries is a potential key factor.
• Genetic and environmental factors may also play a role.
• PMR and GCA can have varied and sometimes subtle symptoms, leading to diagnostic delays.

Conclusions:

• Prompt diagnosis and corticosteroid therapy are crucial for preventing severe outcomes such as disability and vascular events.
• Family physicians play a vital role in identifying these conditions early.
• Despite diagnostic challenges, PMR and GCA are treatable rheumatological diseases.