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A 39-year-old man with metastatic mucinous adenocarcinoma of the distal sigmoid colon. Axial noncontrast CT image performed before chemotherapy demonstrates a noncalcified hypodense hepatic metastasis (arrow on left). After 18 months of chemotherapy on multiple regimens, there is an increase in the size of the right hepatic metastasis with a rim of amorphous calcification (arrow on right).
