During the professional lifetime of most physicians, tumors of the small bowel are rarely encountered. Though the small bowel accounts for roughly 75% of the length of the alimentary canal, yet only 3% to 6% of gastrointestinal neoplasms occur in this portion of it. Furthermore, the importance of these tumors and their early detection is underscored by the fact that 75% of them are malignant. Many of these tumors produce early symptoms, and, if they are recognized, surgical resection can result in a reasonably good expectation of a cure.An early clinical diagnosis of these tumors is possible if the physician is "small bowel conscious" when frank or occult blood is found in the stools, in the presence possibly of an unexplained anemia. It should also be remembered that the location, size, and behavior of the tumor determines the nature of the symptomatic onset and the ultimate clinical course.
BRODERS AC, HIGHTOWER NC, HUNT WH, STINSON JC, WHITE RR, LAURENS H. Primary Neoplasms of the Small Bowel: Analysis of One Hundred Two Cases. AMA Arch Surg. 1959;79(5):753–760. doi:https://doi.org/10.1001/archsurg.1959.04320110055010
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