[Gastrointestinal stromal tumors (GIST). Clinical characteristics, diagnosis, and therapy in five cases].

Abstract excerpt

Gastrointestinal stromal tumors (GIST) are rare causes of gastrointestinal bleeding. In most cases these tumors are localized in the stomach and small intestine, more rarely in the esophagus and colon.Pluripotent mesenchymal cells are the suspected origin of GIST. The pathogenesis is obviously initiated by gene mutations, leading to an overexpression and activation of tyrosine kinase proteins. This activation is...

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