Fig. 4
From: Cross-sectional imaging in cancers of the head and neck: how we review and report
Patient with an undifferentiated cancer of the right submandibular gland. Contrast–enhanced CT scan a showing the solid, heterogeneously enhancing mass on the right side (star). CT scan at a slightly lower level b shows the solid metastatic lymph node (arrow). PET-CT image c showing the intense uptake of FDG glucose by the tumour (star) and the lymph node metastasis (arrow), both seen at the same level due to difference in the degree of neck flexion