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FIG 1. Case of a 61-year-old man with squamous cell carcinoma of the hard palate.
A, Gray-scale sonogram of a reactive cervical lymph node shows homogeneous and low echogenicity of the parenchyma and normal hilar echoes (arrows).
B, Power Doppler sonogram of the same node as that shown in panel A shows a normal reactive hilar blood flow.
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