Giant Cell Arteritis (GCA) is an inflammatory condition that primarily affects the large and medium-sized arteries, particularly those in the head and neck. It often occurs in individuals over the age of 50 and can lead to serious complications, such as vision loss, if not treated promptly. Symptoms may include headaches, scalp tenderness, jaw pain, and fatigue. Diagnosis typically involves blood tests to check for inflammation and imaging studies to assess the affected arteries. Treatment usually consists of high doses of corticosteroids to reduce inflammation and prevent complications. Early intervention is crucial for managing this condition effectively.