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FIG 1. Case 1.

A, Axial T1-weighted image (spin-echo: TR/TE, 650/10.7) shows a low-signal-intensity well-defined mass in the right parotid gland.

B, Axial T2-weighted image (fast spin-echo: TR/TE, 3150/108) shows peripheral high signal intensity surrounding a central region of lower signal intensity.