On ultrasound, which feature of a lymph node is typical of a normal node?

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Multiple Choice

On ultrasound, which feature of a lymph node is typical of a normal node?

Explanation:
Normal lymph nodes on ultrasound preserve their architecture: they are oval (elongated) in shape and contain a central echogenic fatty hilum. This bright hilum reflects the preserved vessels and fat within the node, with the cortex remaining relatively thin and hypoechoic. When nodes become abnormal, they often lose the hilum, become round due to cortical thickening, or develop irregular borders or abnormal cortical echogenicity. So the combination of an oval shape with a visible echogenic fatty hilum best describes a normal node.

Normal lymph nodes on ultrasound preserve their architecture: they are oval (elongated) in shape and contain a central echogenic fatty hilum. This bright hilum reflects the preserved vessels and fat within the node, with the cortex remaining relatively thin and hypoechoic. When nodes become abnormal, they often lose the hilum, become round due to cortical thickening, or develop irregular borders or abnormal cortical echogenicity. So the combination of an oval shape with a visible echogenic fatty hilum best describes a normal node.

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