What is the most likely diagnosis?
A. Raynaud’s Phenomenon
B. Aortic Regurgitation
C. Anemia
D. Hypothyroidism
Answer and Explanation:
Answer: B. Aortic Regurgitation
Explanation:
The image is showing capillary pulsations at the nail bed, which is the classical Quincke’s sign
Quincke’s sign: Alternating flushing and blanching of the nail bed in sync with the heartbeat.
Caused by wide pulse pressure in severe aortic regurgitation.
It is one of many peripheral signs of AR.
Other options:
A. Raynaud’s → episodic vasospasm of digits → white-blue-red color change, not capillary pulsation.
C. Anemia → produces pallor, not Quincke’s sign.
D. Hypothyroidism → dry skin, bradycardia, no nail bed pulsations.