PMC9846346_01
PMC9846346_02
PMC9846346_03
Case 2, tongue appearance at diagnosis.
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A mass at the root of the tongue was detected upon physical examination ( Figure 1 ) in a local hospital, and the MRI revealed a mass measuring 23 mm x 17 mm x 18 mm.
PMC9846346_04
Case 2, tumor in magnetic resonance imaging at relapse (sagittal).
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The maxillofacial-enhanced MRI performed 10 months after the completion of chemotherapy indicated that the range of nodular and patchy fat-saturated T2 signal in the tongue's body and base increased, demonstrating uneven and obvious enhancement with an unclear boundary involving the geniohyoid, left geniohyoid, and mylohyoid muscles ( Figures 2 ,  3 ).
Case 2, tumor in magnetic resonance imaging at relapse (axial).
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The maxillofacial-enhanced MRI performed 10 months after the completion of chemotherapy indicated that the range of nodular and patchy fat-saturated T2 signal in the tongue's body and base increased, demonstrating uneven and obvious enhancement with an unclear boundary involving the geniohyoid, left geniohyoid, and mylohyoid muscles ( Figures 2 ,  3 ).