6. POSSIBLE SCENARIOS Scenario Management Large extraluminal mass in the abdomen CT with oral and IV contrast to determine if fluid-filled. If abscess, FNA and percutaneous CT-guided catheter drainage If not, biopsy. No mass is found Further investigate non-malignant causes of CEA increase Solitary 2 cm mass is found in the right lobe of the liver Surgical resection Widely disseminated diffuse mass effect is seen throughout the abdomen and pelvis First line therapy: 5-fluorouracil and leucovorin. Second line: irinotecan. Surgery for palliative care in the case of obstructions and adhesions, or diagnostic/staging purposes.
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