Fig. 5
Lymphatic map (fused axial SPECT/CT images 24 h post-injection of [99mTc]Tc-nanocolloid) and [18F]FDG-PET/CT images (fused axial images 1 h post-injection of [18F]FDG) of a patient with stage rIIIC1 squamous cell carcinoma. Upper row: lymph node at the level of the left common iliac vessel, not irradiated as it was not suspicious on MRI or [18F]FDG-PET/CT imaging. a Lymphatic map: visualized b [18F]FDG-PET/CT: no [18F]FDG uptake, short axis < 1 cm. Lower row: lymph node at the level of the left external iliac vessel, irradiated as it was suspicious on [18F]FDG-PET/CT imaging. c Lymphatic map: visualized. d [18F]FDG-PET/CT: pathological [18F]FDG uptake and 1.3 cm short axis