1 MCQs in Pathology for NEET PG
A 52-year-old man with known cirrhosis due to chronic hepatitis B presents with multiple vascular lesions on his chest and face. On examination, the lesions blanch completely when pressure is applied to the central spot, and refill from the center outward when the pressure is released. The structure marked **A** in the diagram is responsible for this characteristic blanching and refilling pattern. Which of the following best explains the pathophysiology of these lesions in this patient?
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