Figure 2From: Collision tumor of low-grade B-cell lymphoma and adenocarcinoma with tuberculosis in the colon: a case report and literature reviewComputed tomography (CT) of the abdomen and chest. (A) Abdominal CT revealed wall thickening of the sigmoid colon, which is compatible with colon cancer (arrow). (B) Chest CT revealed a 3.2-cm nodule in the right middle lung field (arrow).Back to article page