case_images: PMC7212967_01
case_images: CT of abdomen and pelvis shows obstructive mass in sigmoid colon.
case_images: gr1.jpg
case_images: PMC7212967_01_gr1.jpg
case_images: fig0005
case_images: Carcinoembryonic antigen 4.32 ng/mL (reference 0-3), and elevated procalcitonin 1.87 ng/mL (reference 0.05-0.5). Computerized tomography (CT) of the abdomen revealed a colonic mass resulting in sigmoid colonic obstruction and large bowel dilatation (Fig. 1).
case_images: CT of chest shows patchy ground glass opacities in right upper lung, peripheral field.
case_images: gr2.jpg
case_images: PMC7212967_01_gr2.jpg
case_images: fig0010
case_images: COVID-19 evaluation, particularly with elevated procalcitonin, lymphopenia and ground glass opacities in the right upper lung on chest CT (Fig. 2). COVID-19 testing was not available prior to surgery and performed afterward.
case_images: Hematoxylin-eosin staining of colon tumor shows moderately differentiated malignant cells invading the seroma.
case_images: gr3.jpg
case_images: PMC7212967_01_gr3.jpg
case_images: fig0015
case_images: Surgical pathology revealed adenocarcinoma T4aN0M0 (Fig. 3).