This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Aerial disorders, Subject name: Surgery
Most common complication of Giant cell aeritis 
Select and explain. 
A. Stroke, B. MI, C. Blindness, D. Renal failure
C: Blindness
Answer: C: Blindness 
Explanation: GIANT CELL AERITIS (TEMPORAL AERITIS) Superficial temporal, veebral & major aoic arch branches may be involved. Ischemic symptoms are common, including claudication of facial or extremity muscles & retinal ischemia Blindness, usually irreversible, is a dreaded complicated.