Papel atual dos métodos de imagem no diagnóstico das neoplasias císticas e sólidas do pâncreas: 2ªparte

Abstract

Os autores fazem uma revisão considerando o valor da colangiopancreatografia endoscópica retrógrada, da ultrassonografia, da tomografia computadorizada, da ressonância magnética e da ecoendoscopia para o diagnóstico das neoplasias císticas e sólidas do pâncreas, demonstrando que cada um deles tem grande importância para aumentar, de forma inconteste, a acurácia diagnóstica das doenças do sistema biliopancreático. determinando qual o melhor método para cada um dos diversos tumores.

Prevalence of pancreatic cystic neoplasms on imaging exams: association with signs of malignancy risk

“…The imaging characteristics can facilitate the etiological diagnosis and therapeutic planning, given the highly varied clinical spectrum and prognosis of these lesions (19) .…”

“…It can have a multilocular appearance, with a solid component, accompanied by ductal dilation and parenchyma atrophy (19,21) . Mucinous cystadenomas present as unilocular cystic lesions, with walls well differentiated from the rest of the pancreatic parenchyma, and can be divided into multiple compartments by thin septa, with or without thick contents (mucin).…”

“…Such lesions have a radiological appearance similar to that of pancreatic pseudocysts, and the clinical history plays a fundamental role in their differentiation. Serous cystadenomas appear as lesions that are well delimited by a fibrous capsule, containing numerous microcysts with fluid content, in a honeycomb aspect, in some cases being macrocystic and unilocular (11,19) .…”

Papillary neoplasias of the biliary tract

“…The formation of intra-epithelial neoplasms analyzed in the study of Ohike et al was similar to that of the pancreas IPMN and bile IPN [1][2][3][4][5][6][7][8][9][10][11][12] , which allowed their classification in parallel to these two categories 13 . Similar to what happens in the neighboring places, these tumors are characterized by exophytic growth (papillary, tubular or papilotubular), with intestinal or gastric / pancreaticobiliary cell line and dysplastic change spectrum (adenoma-carcinoma sequence).…”