Image/Video Gallery

Colorectal carcinoma in a patient with rising carcinoembryonic antigen tumor marker levels.

A = Computed tomography (CT) scan with intravenous contrast not showing metastatic disease.

B = Horizontal positron emission tomography (PET) scan showing focal abnormal radiopharmaceutical uptake in right lobe of liver.

C = Biopsy showing liver metastasis.

Note: Images are shown for illustrative purposes. Do not attempt to draw conclusions or make diagnoses by comparing these images to other medical images, particularly your own. Only qualified physicians should interpret images; the radiologist is the physician expert trained in medical imaging.