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. 2020 Dec 7;25(6):3861–3871. doi: 10.1007/s00784-020-03716-4

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© The Author(s) 2020

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Fig. 4 — A case with the MC lacking a bony wall and with an accessory IAN. Left (CT): the MC (indicated by the orange arrow) is hardly visible and the accessory IAN (indicated by the yellow arrow) could be missed; right (MRI): both NVB appear clearly hyperintense