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MR imaging–based volumetric analysis of a regional nodal metastasis in a patient with a primary cancer at the base of the tongue.
A and B, Two sequential axial T2-weighted images show how the nodal mass was outlined within a mouse-controlled cursor.
C, Serial axial T2-weighted MR images (4000/100/2) show all images on which nodal metastases are outlined and the outlines on each image.
