ABSTRACT
Pancreatitis crónica (PC) se define por el daño irreversible del páncreas con destrucción del tejido. La ecoendoscopia ofrece imágenes de alta resolución, tanto del sistema ductal como del parénquima, con menor tasa de complicaciones. Objetivo: clasificar los pacientes con criterios endosonográficos en patrones diagnósticos de PC. Resultados: la muestra estuvo compuesta de 109pacientes entre 16 y 86 años, 77% masculino, 23% femenino. Más del 84% presentó patrones de PC no tumorales. Las clasificaciones más observadas fueron las areolares (63%), leve (26%) y moderada (32%); el 21% presentó un patrón calcificado. El 15% presentó un patrón tumoral. Las indicaciones más frecuentes fueron la lesión ocupante de espacio (17%) y sospecha de PC (16%). Se diagnosticó PC en 37% de los pacientes con pancreatitis aguda, recurrente e hiperamilasemia. La mayor severidad se observó en PC calcificadas (61%). Conclusiones: el 84% de los pacientes con diagnóstico ecoendoscópico de PC tienen un patrón no tumoral y 15% tumoral; donde se evidencia la lesión de ocupación de espacio produciendo cambios de PC retrógrada. El 21% mostró calcificaciones ductales. La clasificación de los pacientes, utilizando los patrones de PC, permite separar los diferentes grados y formas de pancreatopatía con la imagen de la EE y permitiría crear un consenso entre los diferentes ecoendoscopistas.
Chronic pancreatitis (CP) is defined as pancreatic irreversible damage with exocrine and endocrine tissue destruction. Endoscopic ultrasonography (EUS) has emerged as the ideal technique to evaluate pancreatic structure, since it offers high resolution images from both ductal and parenchymal systems with a significant lower rate of complications. Objective: To classify patients with sonographic criteria into diagnostic patterns of CP. Results: We randomly studied 109 patients between 16 and 86 years old, 77% male and 23% female. More than 84% of the patients showed non tumoral patterns of chronicpancreatitis. Mild (26%), moderate (32%); areolar patterns were the most frequently observed (63%).21% showed a calcified pattern. Moderate pancreatitis was the most frequent grade of severity found (49%). 15% showed a tumoral pattern. The more frequent indications for this study were: Pancreatic tumors (17%) and suspicion of chronic pancreatitis (16%). We found CP in 37% of the patients referred because of acute pancreatitis, recurrent pancreatitis and asymptomatic elevated. serum amylase. Major severity was found in calcified CP. Conclusions: 86% of the patients with echoendoscopic diagnosis of CP had non-tumoral patterns and only 15% tumoral, where we could demonstrate a tumor-like lesion obstructing the Wirsung conduct, with ascending retrograde pancreatitis features. Mild and moderate areolar types were the most frequent non tumoral patterns (68%). These patients were not known of having previous diagnosis of pancreatic disease. 21% showed ductal calcifications. This unique criteria has an enormous diagnostic importance for CP. This classification using CP patterns allows separating in different categories and grades this entity and could achieve a consensus between different ultrasonographers.