Qué aporta la ultrasonografía endoscópica en el diagnóstico de los tumores neuroendocrinos de páncreas / Contribution of endoscopic ultrasonograhy to the diagnosis of neuroendocrine pancreatic tumors

Resumen Los tumores neuroendocrinos pancreáticos (TNE) son infrecuentes, presentando una incidencia aproximada de 1/100.000, lo que representa solo un 1–2% de las neoplasias pancreáticas. La localización y estadiaje de los TNE previa a la cirugía es de enorme utilidad, ya que permite optimizar su tratamiento. Sin embargo, su localización es a menudo difícil ya que suelen ser de pequeño tamaño. El aspecto ecográfico más característico de estas lesiones es el de una tumoración redondeada, hipoecogénica, homogénea, con límites precisos y refuerzo periférico en relación a su importante vascularización. La ultrasonografía endoscópica (USE) ha demostrado ser la técnica más precisa para el diagnóstico y localización de los TNE, alcanzando una sensibilidad y especificidad cercanas al 95%, claramente superior a otras técnicas de imagen. La precisión diagnóstica puede incluso incrementarse si se asocia la punción aspiración con aguja fina (AU)

Abstract Neuroendocrine pancreatic tumors (NEPT) are relatively infrequent tumors, with an incidence of approximately 1 case per 100.000 inhabitants, representing only 1–2% of pancreatic neoplasms. Localization and staging of NEPT prior to surgery is essential to allow treatment optimization. However, localizing these tumors is often difficult, mainly because of their small size. On ultrasound, NEPT usually appear as rounded, hypoechoic and homogeneous lesions, with precise limits and peripheral enhancement due to their significant vascularization. The most precise technique for the diagnosis and localization of NEPT is endoscopic ultrasound (EUS), with a sensitivity and specificity as high as 95%, clearly superior to those of other imaging procedures. Overall diagnostic accuracy may even be increased by associating EUS-guided fine-needle aspiration (AU)

[Contribution of endoscopic ultrasonography to the diagnosis of neuroendocrine pancreatic tumors]. / Qué aporta la ultrasonografía endoscópica en el diagnóstico de los tumores neuroendocrinos de páncreas.

Neuroendocrine pancreatic tumors (NEPT) are relatively infrequent tumors, with an incidence of approximately 1 case per 100.000 inhabitants, representing only 1-2% of pancreatic neoplasms. Localization and staging of NEPT prior to surgery is essential to allow treatment optimization. However, localizing these tumors is often difficult, mainly because of their small size. On ultrasound, NEPT usually appear as rounded, hypoechoic and homogeneous lesions, with precise limits and peripheral enhancement due to their significant vascularization. The most precise technique for the diagnosis and localization of NEPT is endoscopic ultrasound (EUS), with a sensitivity and specificity as high as 95%, clearly superior to those of other imaging procedures. Overall diagnostic accuracy may even be increased by associating EUS-guided fine-needle aspiration.

Reparación mediante prótesis de una perforación tras dilatación endoscópica en un paciente con acalasia / Prosthetic repair of perforation after endoscopic dilation in a patient with achalasia

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