Fig. 8
71-year-old woman with metastatic uveal melanoma, and previous central liver resection for solitary metastasis. Follow-up 18F-FDG PET images 6 months post-surgery showed at least two foci of low-grade 18F-FDG uptake in the liver, slightly above the physiological background activity (black arrows, image A – zoomed MIP). The lesion in segment 4a just left to the surgical margin (red arrow on image B - axial fused image) was subsequently confirmed to be metastatic melanoma on histology. The lesion in segment 6 (red arrow on image C – axial fused image), which was associated with a subtle area of hypo-attenuation on low dose CT, showed further progression on follow-up CT after 3 months (image not provided)