Giant Cell Arteritis of the Breast

Area of Science:

• Vascular Inflammation
• Rheumatology
• Oncology

Background:

• Giant cell arteritis (GCA) typically affects large and medium-sized arteries, commonly the temporal arteries in older women.
• Breast involvement in GCA is rare, often presenting as tender or painful breast masses.
• GCA of the breast can clinically mimic breast carcinoma, necessitating accurate diagnosis.

Purpose of the Study:

• To summarize the presentation and management of giant cell arteritis involving the breast.
• To highlight the clinical features that may suggest GCA in breast lesions.
• To emphasize the importance of diagnosing GCA for effective treatment.

Main Methods:

• Literature review of reported cases of GCA involving the breast.
• Analysis of clinical presentation, diagnostic findings, and treatment outcomes.
• Comparison of GCA breast involvement with other breast pathologies.

Main Results:

• Patients typically present with tender or painful breast masses.
• Constitutional symptoms similar to polymyalgia rheumatica may be present but are not universal.
• Most cases do not have a prior diagnosis of autoimmune disease.
• Prednisone treatment is effective in achieving symptom remission.

Conclusions:

• Giant cell arteritis of the breast is an uncommon but important diagnosis to consider in patients presenting with breast masses.
• Distinguishing GCA from breast carcinoma is crucial for appropriate management.
• Corticosteroid therapy, particularly prednisone, is the mainstay of treatment and leads to favorable outcomes.