Colecistectomía para pólipos vesiculares

Autores: Ramos De la Medina Antonio, Fong Yuman, Sarr Michael G

Fragmento

The natural history of polypoid lesions of the gallbladder (PLG) is not completely understood, because most available studies are necessarily retrospective. Although most polyps are benign and asymptomatic, some early gallbladder carcinomas will become evident as symptomatic polypoid lesions. Traditionally, the characteristics of the polyp associated with an increased risk of malignancy include diameter greater than 10 mm, patient age greater than 50 years, presence of concomitant gallstones, solitary lesions, sessile polyp, presence of symptoms and rapid change in size on serial ultrasonography (US), however, there are no definitive criteria identified. The advances in resolution and the broader use of modern imaging methods have enabled the detection of smaller PLG. However, despite new technology like endoscopic ultrasonography, it remains difficult and often impossible to differentiate neoplastic from non-neoplastic PLG solely by depending on imaging studies, especially when polyps are smaller than 10 mm. Moreover, US is highly operator-dependent and may over or underestimate polyp diameter, making size assessments difficult to compare between examinations particularly when performed with low-end equipment or by non-radiologists.

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2010-11-11   |   985 visitas   |   Evalua este artículo 0 valoraciones

Vol. 75 Núm.3. Julio-Septiembre 2010 Pags. 363-367. Rev Gastroenterol Mex 2010; 75(3)