Fig. 2From: High CEA levels in a case of resected colorectal cancer: delayed diagnosis of metachronous medullary thyroid cancerThe second time FDG-PET/CT scan of the same patient with progressively elevated CEA levels up to 184 µg/L showed persistent focal FDG uptake in the right thyroid lobe (arrow), corresponding to the hypodense nodule and calcification shown on CTBack to article page