A 64-year-old man reported to his general physician after he noticed some fatigue. Initial examination revealed low hemoglobin levels and iron deficiency. A colonoscopy revealed a 4-cm non-obstructing mass in the ascending colon, identified as adenocarcinoma in the biopsy. A right hemicolectomy was performed, which revealed T4N0 colon cancer. Eight lymph nodes were removed during surgery, which was negative for metastatic disease. The patient was given no chemotherapy. Two years later, an increase in the concentration of carcinoembryonic antigen was observed in a routine examination.
Three small lesions were identified within the liver in PEC/CT scan. Metastatic colon cancer was confirmed by biopsy. The patient was given oxaliplatin and bevacizumab. He remained stable for 13 months, following which new liver metastases were identified. His energy level fell. No fever, chest pain,…