Management of early asymptomatic XXXX of the @entity1819 .

@entity1 @entity677 @entity1819 @entity5 @entity1066 @entity674 @entity361 @entity360 @entity356
@entity674 ( @entity677 ) are the most common @entity361 of the digestive tract. Approximately two thirds of clinically manifest @entity5 occur in the @entity1819 , nearly one third in the small bowel, and the rest in the colorectal region with a few cases in the esophagus. @entity677 originate within the smooth muscle layer in the wall of the tubular gastrointestinal tract and grow mostly toward the serosa, far less often toward the mucosa. In the latter case, @entity1066 may develop and can cause @entity360 as the cardinal symptom. However, most @entity677 are asymptomatic. They are increasingly detected incidentally as small intramural or @entity5 during endoscopy and particularly during endoscopic ultrasound. Epidemiological and molecular genetic findings suggest that early asymptomatic @entity677 (< 1 cm) show self-limiting tumorigenesis. Thus, early (< 1 cm) asymptomatic @entity356 (synonym: @entity677 ) are found in 20%-30% of the elderly. The mostly elderly @entity1 with early @entity356 have an excellent @entity677 -specific prognosis. @entity1 with early @entity677 can therefore be managed by endoscopic surveillance.
