Which of the following factors is most valuable in predicting the biologic behavior of carcinoma of the colon?

Related MCQs

• In contrast to carcinoma of the right colon, carcinoma of the left colon tends to be associated with:
• Which is most characteristic of carcinoma of the cecum or right colon (in contrast to carcinoma of the rectum)?
• A 30-year-old woman has a right mastectomy and axillary lymph node dissection for a carcinoma diagnosed by fine needle aspiration cytology. The histologic pattern is that of a poorly differentiated carcinoma that is negative for oestrogen and progesterone receptors, but is positive for HER2/neu. One axillary lymph node demonstrates micro- metastases. Her 32 year old sister is found to have a similar lesion. Which of the following statements regarding risk factors for this lesion is the most appropriate?
• A 68-year-old man presents to his primary care physician for a routine physical examination. The patient‟s medical history is significant for hypertension. The patient is found to have guaiac-positive stools and is subsequently referred for colonoscopy. Colonoscopy reveals a “golf ball”-size, near-obstructing tumor in the descending colon, not admitting the scope. The biopsy is positive for adenocarcinoma of the colon. Which of the following is the next step in the management of this patient?
• Adenocarcinoma of the ascending colon is more likely than adenocarcinoma of the sigmoid colon to:
• Persistent elevation of serum carcinoembryonic antigen following surgical resection of a carcinoma of the colon suggests:
• All are precancerous for carcinoma colon except
• Which of the following characterizes the biologic nature of carcinoid tumors (argentaffinomas)?
• Which of the following factors most adversely affects patients receiving radiation therapy for squamous cell carcinoma of the head and neck?
• Which of these genetic risk factors has the highest association with colon cancers