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. 2023 Jul 26;96(1149):20230046. doi: 10.1259/bjr.20230046

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© 2023 The Authors. Published by the British Institute of Radiology

This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 Unported License http://creativecommons.org/licenses/by-nc/4.0/, which permits unrestricted non-commercial reuse, provided the original author and source are credited.

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Figure 10. — Nasopharyngeal carcinoma. (a-c) Small NPC in the left fossa of Rosenmüller. A 66-year old male presented with a suspicious left nasopharyngeal lesion on nasendoscopy. (a) Axial T1-weighted STIR MRI shows asymmetrical enlargement of the left nasopharynx. (b) Axial T1-weighted post-contrast MRI shows heterogeneous enhancement. (c) Axial T2-weighted, fat-suppressed MRI shows an enlarged ipsilateral retropharyngeal node – a common region of nodal metastasis in NPC. (d-f) Invasive NPC. A 48-year old male presented with a large, highly suspicious right nasopharyngeal mass on nasendoscopy. (d) Axial fat-suppressed T1-weighted, post-contrast MRI shows an irregular, heterogeneously enhancing, right nasopharyngeal mass and middle ear effusion. (e) Coronal T1-weighted, post-contrast MRI shows the craniocaudal extent of the mass, with skull base invasion and intracranial extension. (f) Axial T1-weighted, post-contrast MRI Brain shows cranial invasion into the right middle cranial fossa.