A 23 year old female presents with paresthesias and loss of distal pulses in her arms. She is noted to be hypertensive. She describes feeling unwell a month prior with fever and night sweats. What is the most probable diagnosis?

The key is B. Takayasu arteritis [Takayasu arteritis is a granulomatous inflammation of the aorta and

its major branches.

Criteria:

• Age of 40 years or younger at disease onset

• Claudication of the extremities

• Decreased pulsation of 1 or both brachial arteries

• Difference of at least 10 mm Hg in systolic blood pressure between arms

• Bruit over 1 or both subclavian arteries or the abdominal aorta

• Arteriographic narrowing or occlusion of the entire aorta, its primary branches, or large arteries

in the upper or lower extremities that is not due to arteriosclerosis, fibromuscular dysplasia, or

other causes].