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Revista argentina de cirugía
versión impresa ISSN 2250-639Xversión On-line ISSN 2250-639X
Resumen
LIMA, Melina et al. GIST tumor: an unusual presentation. Rev. argent. cir. [online]. 2022, vol.114, n.3, pp.275-278. ISSN 2250-639X. http://dx.doi.org/10.25132/raac.v114.n3.1486.
Gastrointestinal stromal tumors (GISTs) account for < 3% of gastrointestinal neoplasms and are the most common mesenchymal tumors. They are more common in men > 50 years. They are benign in 80% of the cases and usually occur in the stomach and small intestine. The incidence of extragastrointestinal GISTs is unknown. A 56-year-old male patient sought medical care for abdominal pain in the right iliac fossa that appeared after exercising. The patient was a current smoker, obese, had a history of hypertension (HTN) and diabetes (DBT) and was receiving anticoagulants. A computed tomography (CT) scan showed an expansive mass within the peritoneum with peripheral enhancement. Surgical management was decided. During the procedure, a tumor was found in the mesentery. Up to 60% of these tumors are usually asymptomatic and are incidentally found in imaging tests; therefore, clinical suspicion and, most importantly immunohistochemistry, are essential for the diagnosis. CD117 is the main marker. Surgery is the treatment of choice for GISTs and chemotherapy is also indicated.
Palabras clave : GIST tumor; Mesenteric tumor; Occupying mass.