Fig. 1

Computed tomography (CT) of abdomen and pelvis. This shows a CT image of the patient’s abdomen, and pelvis, along with the lower lung fields. A Coronal view of CT abdomen and pelvis with red arrow pointing to a large, midline mass at the lower retroperitoneal/upper pelvis immediately adjacent to the sigmoid colon measuring 5.8 cm X 5.4 cm X 5 cm consistent with sigmoid adenocarcinoma, and green arrow pointing toward left lower lung mass measuring 4.6 cm X 3.4 cm consistent with pulmonary metastasis. B Axial view with green arrow pointing towards the pulmonary metastases in the left lower lung. C Axial view with red arrow pointing towards the primary sigmoid adenocarcinoma. D Axial view with yellow arrow pointing to hypodense lesion in the liver consistent with liver metastasis