In cases of left-sided heart failure, what histological change is often seen involving pulmonary capillaries?
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Correct answer: Congestion and fluid transudation into the alveoli
Increased pressure in the pulmonary veins leads to back-pressure in the pulmonary capillaries. This causes them to become engorged (congestion) and leads to the transudation of fluid into the alveoli, resulting in pulmonary edema.
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