Albert B. Lowenfels, MD

Of all the digestive tract tumors, small-bowel cancers are the least common. Why should we study these rare tumors, and what, if anything, can we learn from them? Sometimes the absence of an important event can provide the answer to a difficult problem. For example, consider the famous Sherlock Holmes mystery story, "Silver Blaze," in which the master sleuth solved a challenging case, simply because the watchdog didn't bark when he should have, implying that the murderer was well known to the dog.[1]