Emphysema can cause all of the following conditions, EXCEPT?

Emphysema is a chronic lung condition that primarily affects the alveoli, leading to airflow obstruction and difficulty in gas exchange. This disease process can lead to several complications due to the lack of adequate oxygen and the buildup of carbon dioxide in the bloodstream.

Cor pulmonale, or right-sided heart failure due to lung disease, is a common complication in patients with emphysema because the increased pressure in the pulmonary arteries can strain the heart. The chronic hypoxia from emphysema can also stimulate the production of more red blood cells, resulting in polycythemia as the body attempts to compensate for decreased oxygen levels. Additionally, pulmonary hypertension is a direct consequence of hypoxia and the destruction of the pulmonary vasculature seen in emphysema.

In contrast, pulmonary edema is not typically caused by emphysema. Pulmonary edema refers to the accumulation of fluid in the lungs, often resulting from heart failure or fluid overload rather than from the destructive and obstructive process of emphysema. Therefore, while emphysema can lead to various systemic complications, it does not directly cause pulmonary edema, making this the correct response in the context of the question.