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GI Path II, Case 6

GI Path II, Case 6. 60-year-old obese male with heart disease has easy fatiguability and "palpitations" recently. He does not smoke and and drinks alcohol only occasionally. Laboratory evaluation reveals microcytic anemia. Identify the organ(s) and structures Describe the gross findings

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GI Path II, Case 6

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  1. GI Path II, Case 6 • 60-year-old obese male with heart disease has easy fatiguability and "palpitations" recently. He does not smoke and and drinks alcohol only occasionally. • Laboratory evaluation reveals microcytic anemia

  2. Identify the organ(s) and structures Describe the gross findings Probable diagnosis?

  3. The surgical specimen consisting of terminal ileum and proximal colon reveals a large, exophytic adenocarcinoma (arrow) in the cecum.

  4. Identify the organs. Describe the gross findings. What do the arrows signify?

  5. The surgical specimen consisting of terminal ileum and proximal colon reveals a large exophytic adenocarcinoma (yellow arrow) above the cecum. The white arrows point to small tubular adenomas in the cecum.

  6. Describe the lesion What is the probable diagnosis?

  7. A cross section of a segment of formalin fixed colon reveals an adenocarcinoma. The lumen is opened, revealing a gray-white neoplasm that infiltrated the yellow, pericolic fat. The center of the neoplasm is ulcerated (*).

  8. Identify the organ Describe the gross findings Probable diagnosis?

  9. A section of opened colon reveals an adenocarcinoma. The neoplasm constricts the lumen by forming a complete ring.

  10. Identify the organ Describe the gross findings. Probable diagnosis?

  11. A section of opened colon reveals an adenocarcinoma. The neoplasm forms a thin, complete ring that constricts the lumen. The proximal segment of the specimen is dilated compared to the distal segment.

  12. Identify the organ(s) Describe the gross findings. Probable diagnosis?

  13. An opened section of the distal colon and anus reveals an adenocarcinoma. The neoplasm is ulcerated and located within the distal rectum.

  14. Identify the organ(s). Describe the gross findings. Probable diagnosis?

  15. A section of the distal colon and anus reveals an adenocarcinoma of the rectum within the reach of the examiner's finger.

  16. Describe the low power histologic findings

  17. Normal colonic mucosa Infiltrating adenocarcinoma

  18. Describe the high power histologic findings

  19. Infiltrating Malignant glands Glands composed of pleomorphic, malignant cells

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