Fleites CV, Soriano GJL, Lima PM, Morales MD, Batista AN, Concepción IR, Domínguez ÁC, Fernández SL

Language: Spanish
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ABSTRACT

Introduction: Gastrointestinal stromal tumors are rare mesenchymal neoplasms, accounting for 0.2 % of all gastrointestinal tumors.
Objective: To characterize patients with Gastrointestinal stromal tumors in nonmetastatic stages from the clinical and anatomopathological point of view.
Methods: Longitudinal and retrospective study, with 144 patients diagnosed with primary and located gastrointestinal stromal tumors, who were initially surgically intervented, and attended at the Hermanos Ameijeiras Hospital, between June 2003 and December 2016.
Results: The average age was 57 years. Male patients predominated, and abdominal pain, as the main form of presentation, while the most frequent location was the stomach, followed by the small intestine, and the mean tumor size was 10.3 cm. More than 75 % of patients had tumors larger than 5 cm, and more than 60 % of patients had a mitotic index ≤5, and 80 % had an intermediate or high risk (Fletcher criteria). The most frequent form of presentation was bleeding in colon/rectum tumors (50.0 %) and stomach (48.6 %), while abdominal pain was for the gastrointestinal stromal tumors of small intestine (47.5 %) and peritoneum (85.7 %). Complete surgical resection was achieved in 90 % of the cases. Nine patients, experienced progression of the disease. Fourteen patients developed metastases after surgery (9.7 %), and the most frequent location was the liver (92.8 %).
Conclusions: This is the first epidemiological report on gastrointestinal stromal tumors in Cuba, which provides a detailed information on the behavior of this disease in the so-called "real world", based on a centralized protocolization experience.