Temporal (giant cell) arteritis is best described as a vasculitis of medium-sized arteries, often presenting with temporal region pain and jaw claudication, and can lead to blindness.

Temporal (giant cell) arteritis is best described as a vasculitis of medium-sized arteries, often presenting with temporal region pain and jaw claudication, and can lead to blindness.

• A. Vasculitis of medium-sized arteries, often involving the temporal region with jaw claudication; can cause blindness.
• B. Vasculitis of small veins in the brain.
• C. A degenerative disease of the muscles.
• D. A chronic bacterial infection of the arteries.

Answer: (A)

Temporal arteritis is a vasculitis of medium-sized arteries that typically affects adults over 50 and presents with temple region pain and jaw claudication. Inflammation can involve arteries supplying the optic nerve, risking sudden, permanent vision loss if not treated promptly. The described option best matches because it accurately states the medium-sized arterial involvement along with the classic clinical features and the potential for blindness. The other descriptions don’t fit: involvement of small veins points to venous pathology rather than an arterial vasculitis; a degenerative muscle disease would involve muscle tissue directly rather than blood vessels; a chronic bacterial infection of arteries would describe an infectious arterial process rather than this inflammatory granulomatous vasculitis. Prompt recognition and corticosteroid treatment are essential to prevent vision loss, with supporting findings like elevated ESR and biopsy showing granulomatous inflammation.

Temporal arteritis is a vasculitis of medium-sized arteries that typically affects adults over 50 and presents with temple region pain and jaw claudication. Inflammation can involve arteries supplying the optic nerve, risking sudden, permanent vision loss if not treated promptly. The described option best matches because it accurately states the medium-sized arterial involvement along with the classic clinical features and the potential for blindness. The other descriptions don’t fit: involvement of small veins points to venous pathology rather than an arterial vasculitis; a degenerative muscle disease would involve muscle tissue directly rather than blood vessels; a chronic bacterial infection of arteries would describe an infectious arterial process rather than this inflammatory granulomatous vasculitis. Prompt recognition and corticosteroid treatment are essential to prevent vision loss, with supporting findings like elevated ESR and biopsy showing granulomatous inflammation.