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: Surgery
Pulseless disease is 
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 disease # TAKAYASU'S ARTERITIS (Pulseless disease)> Clinical: Dizziness, syncope Absent upper extremity pulse (pulseless disease) Blood pressure discrepancy between extremities: Low in upper and higher in lower Visual disturbances> Diagnosis: Angiography# 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.