title: [Gastrointestinal stromal tumors: clinical features and diagnosis].
abstract: Gastrointestinal stromal tumors (GIST) are rare, usually sporadic, and mainly located in the stomach or small bowel. Gastrointestinal bleeding is the main presenting symptom. GIST are discovered incidentally in 20% of cases. Endoscopy, and endosonography when possible, are the diagnostic procedures of choice for small GIST, while CT is used for larger tumors. Pathologic diagnosis can be obtained by fine-needle aspiration, but its indications must be discussed on an individual basis.
authors.affiliation: Hépato-gastroentérologie et cancérologie digestive, Hôpital européen Georges Pompidou, 20, rue Leblanc, 75015 Paris bruno.landi@hop.egp.aphp.fr
authors.forename: Bruno
authors.initials: B
authors.lastname: Landi
mesh_terms: D001707:Biopsy, Needle; D003938:Diagnostic Techniques, Digestive System; D016099:Endoscopy, Gastrointestinal / Q000379:methods; D019160:Endosonography / Q000379:methods; D005770:Gastrointestinal Neoplasms / Q000175:diagnosis* / Q000453:epidemiology / Q000473:pathology; D046152:Gastrointestinal Stromal Tumors / Q000175:diagnosis* / Q000453:epidemiology / Q000473:pathology; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods; D011860:Radiography, Abdominal / Q000379:methods