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  • Title: Gastrointestinal stromal tumors: clinical pathological review of a personal series.
    Author: Mattioli F, Puglisi M, Ceppa P, Peresi M, Borgonovo G, Ansaldo G, Varaldo E, Milone L, Assalino M, Torre GC.
    Journal: Chir Ital; 2005; 57(5):579-87. PubMed ID: 16241088.
    Abstract:
    The Authors report their experience on the management of gastrointestinal stromal tumors (GISTs). In addition to recent cases immediately diagnosed as GISTs, a pathological review of stored material from non-epithelial tumors of the gastrointestinal tract operated on over the past 20 years was performed. Twenty-three out of a total of 31 cases were shown to be positive for the immunophenotypic characteristics (CD117/CD34) of GISTs. Most cases (approximately 60%) were symptomatic, with hemorrhage being the most common presenting sign, followed by occlusion, pain and perforation. Asymptomatic cases were detected incidentally during procedures for other conditions. Diagnostic techniques (ultrasound, endoscopy, endoscopic ultrasound, X-ray, CT, MRI) allowed only the detection of wall (extraluminal) involvement. Apart from differentiating between benign and malignant, preoperative biopsy was seldom valuable. All cases were treated surgically, with intervention tailored to location and anatomical/surgical and anatomical/pathological features. Long-term follow-up was conducted in all patients and for most is still ongoing: five patients died from recurrent disease at varying intervals after surgery (from 17 to 102 months). Relationships between observed aggressiveness and risk were studied. Parameters that may prove useful for the early detection and appropriate management of these lesions are discussed.
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