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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2008-9-24
pubmed:abstractText
Predicting the malignant potential of gastrointestinal stromal tumors (GISTs) remains difficult. We assessed the value of serosal penetration, an established prognostic factor in solid tumors, to determine the clinical outcome in patients with GISTs. From 1996-2002, 25 consecutive patients with GIST underwent surgical resection at our Department. The histopathological presence of serosal penetration was assessed to predict clinical outcome. In addition, the established histopathological classification system by Franquemont (modified by using the Ki-67 proliferation index), was applied to each study patient. A Ki-67 index > or =5% (p<0.001) and a mitotic rate > or =5/50 high-power fields (p<0.047) significantly correlated with a shorter survival, whereas a tumor size >5 cm (p=0.07) tended towards a worse prognosis. The survival of patient groups defined by Franquemont (p=0.03) were of prognostic relevance. The presence of serosal penetration significantly correlated (p<0.01) with a shorter survival. Our data suggest that the presence of serosal penetration is a negative prognostic factor for GISTs. Serosal penetration may become a useful additional parameter for the classification of the malignant potential of GISTs. Since our data are merely hypothesis-generating, serosal penetration should be evaluated in large prospective databases.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1021-335X
pubmed:author
pubmed:issnType
Print
pubmed:volume
20
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
779-83
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Serosal penetration is an important prognostic factor for gastrointestinal stromal tumors.
pubmed:affiliation
Department of Visceral and Vascular Surgery, University of Cologne, Cologne, Germany.
pubmed:publicationType
Journal Article