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If the largest vein in the heart, known as the superior vena cava, is dilated, it may indicate underlying health issues such as increased pressure in the veins, heart failure, or conditions that obstruct normal blood flow, such as a tumor or thrombosis. This dilation can lead to symptoms like swelling in the face, neck, or upper extremities. It is essential to evaluate the cause of the dilation, as it may require medical intervention.

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3w ago

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