Figures captions
Figure 1. Axial section PET CT (top left) Intense FDG-uptake within tongue base mass (top right) higher FDG uptake on the left side of nasopharynx (bottom) Bilateral FDG avid cervical nodal metastases
Figure 2. Endoscopic view of nasopharynx: fullness in the left FoR with prominent midline adenoid tissue
Figure 3. p16+ NPC (top) and OPC (bottom). (Top left) non-keratinising SCC (top right) P16 IHC positive in tumour (bottom left) atypical scattered cells with dense lymphoid infiltrate (bottom right) IHC p16 positive in tumour
Figure 4. PET/CT (left half) Intense FDG avid Node deep to left levator scapulae. (Right) Moderate FDG avid left parapharyngeal node at level of hypopharynx.
Figure 5. 3 months post treatment, PET/CT with complete metabolic response