Figure 2From: A case of bone metastasis of colon cancer that markedly responded to S-1/CPT-11 combination chemotherapy and became curable by resectionA) Microscopic image of tumor obtained by colonic biopsy before chemotherapy, showing well-differentiated adenocarcinoma. B) Microscopic image of surgical specimen after chemotherapy. Half of the tumor shows degeneration, necrosis, and fibrosis.Back to article page