BACKGROUND: @entity674 ( @entity674 ) are rare (10 to 20/million). They exist in the whole digestive system and its surroundings, and are most common in the stomach (70%), followed by the small intestine (20-25%), @entity694 (5%), and esophagus ( < 5%). Their clinical presentation varies from small, incidentally found nodules to large and aggressive @entity5 . Nowadays @entity674 are classified according to Fletcher s classification. OBJECTIVE: to review the features of our @entity677 population. METHODS: a retrospective study of @entity677 @entity1 identified by immunohistochemical criteria, from 1997 to December 2007, and classified according to Fletcher s criteria. RESULTS: 43 @entity1 were included (24 @entity1 , 19 @entity1 ) with a mean age of 62.7 years. Gastric @entity674 (20 cases, 46.5%), small intestine @entity674 (18 cases, 41.9%); in 5 cases metastases of occult @entity5 were found. Eighteen cases had no symptoms. @entity5 were classified according to Fletcher s criteria as high-risk (n = 19), intermediate-risk (n = 7), low-risk (n = 12), and indeterminate-risk (n = 5). @entity204 occurred in 10 @entity1 , and 13 @entity1 had @entity3 . CONCLUSIONS: our results are in accordance with the world literature, in which a majority of cases are @entity1 with @entity356 . The 5-year survival rate was 42%. Fletcher s criteria were easily applicable criteria and could predict @entity5 behavior.

[ XXXX - a retrospective study of 43 cases].

@entity1 :: ('9606', 'Species') :: ['men', 'women', 'patients'] @entity677 :: ('MESH:C564650', 'Disease') :: ['GIST'] @entity5 :: ('MESH:D009369', 'Disease') :: ['Tumors', 'tumor', 'tumors'] @entity356 :: ('MESH:D013274', 'Disease') :: ['gastric tumors'] @entity3 :: ('MESH:D009362', 'Disease') :: ['metastatic disease'] @entity674 :: ('MESH:D046152', 'Disease') :: ['GISTs', 'gastrointestinal stromal tumors'] @entity694 :: ('MESH:D003110', 'Disease') :: ['colon and rectum'] @entity204 :: ('MESH:D003643', 'Disease') :: ['Death']
@entity674 :: (MESH:D046152,Disease) :: ['Gastrointestinal stromal tumors']
