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. 2021 Jan 8;31(7):5222–5233. doi: 10.1007/s00330-020-07478-1

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© The Author(s) 2021

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Fig. 2 — T- and N-staging discrepancies between PET/CT and head-and-neck MRI. (a, b) Female, 59 years old, T2N0M0 NPC. PET/CT image (left). Contrast-enhanced T1-weighted MRI image (right). PET/CT did not detect the parapharyngeal lesion that was found by MRI (red arrow). (c, d) Male, 57 years old, T2N1M0 NPC. PET/CT image (left). Contrast-enhanced T1-weighted MRI image (right). PET/CT distinguished positive neck lymph node (red arrow) while it was regarded as a morphological benign lymph node in MRI