This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Medicine
Pulseless disease 
Select and explain. 
A. Microscopic polyarteritis, B. Giant cell arteritis, C. Takayasu's disease, D. PAN
C: Takayasu's disease
Answer: C: Takayasu's disease 
Explanation: (C) Takayasu's # Pulses are commonly absent in the involved vessels, particularly the subclavian artery in Takayasu's. In Giant cell arteritis patients with involvement of the temporal artery, headache is the predominant symptom and may be associated with a tender, thickened, or nodular artery, which may pulsate early in the disease but may become occluded later