PART 7: Oncology and Hematology
SECTION 1 Neoplastic Disorders
91 Gastrointestinal Tract Cancer
 | Figure 91-1 Double-contrast air-barium enema revealing a sessile tumor of the cecum in a patient with iron-deficiency anemia and guaiac-positive stool. The lesion at surgery was a stage II adenocarcinoma. |
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 | Figure 91-2 Annular, constricting adenocarcinoma of the descending colon. This radiographic appearance is referred to as an "apple-core" lesion and is always highly suggestive of malignancy. |
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 | Figure 91-3 Staging and prognosis for patients with colorectal cancer. |
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