Non-inflammatory pancreatic cysts: from diagnosis to treatment (97 cases series) / Cistos não inflamatórios de pâncreas: do diagnóstico ao tratamento (série de 97 casos)

ABSTRACT Objective: to describe the implications of the diagnosis and treatment of non-inflammatory pancreatic cysts in a series of patients. Methods: we included patients with pancreatic cysts ≥1.0 cm, excluding those with a presumptive diagnosis of a pseudocyst. Imaging tests, echoendoscopy, and histopathology determined the diagnosis of the type of cyst. We applied the guidelines of the International Association of Pancreatology, with some modifications, in patients with mucinous or indeterminate lesions. Results: 97 adult patients participated in the study. A cystic neoplasm of the pancreas was diagnosed in 82.5% of cases. Diagnosis was mainly made by magnetic resonance (46% of cases). The two most common diagnoses were intraductal papillary mucinous neoplasm (43.3%) and serous cystadenoma (26%). Twenty-nine patients underwent surgery (33.3%). The most common surgical procedure was distal pancreatectomy associated with splenectomy in 19 cases (65.5%). Among the operated patients, 11 were diagnosed with cancer. None of the followed, non-operated patients had a diagnosis of cancer. Conclusions: magnetic resonance showed good accuracy, particularly in the diagnosis of intraductal papillary mucinous neoplasm. The guidelines of the International Association of Pancreatology, as applied in this study, showed a negative predictive value for cancer of 100%. A development of better diagnostic tests can reduce the number of unnecessary operations.

RESUMO Objetivo: descrever as implicações do diagnóstico e tratamento dos cistos não inflamatórios do pâncreas em série de pacientes. Metódos: foram incluídos pacientes com cisto de pâncreas ≥1,0cm excluindo aqueles com diagnóstico presuntivo de pseudocisto. Exames de imagem, ecoendoscopia e anatomia-patológica determinaram o diagnóstico do tipo de cisto. As diretrizes da Associação Internacional de Pancreatologia foram aplicadas, com algumas modificações, nos pacientes com lesões mucinosas ou indeterminadas. Resultados: noventa e sete pacientes adultos participaram do estudo. A neoplasia cística de pâncreas foi diagnosticada em 82,5% dos casos. O diagnóstico foi feito principalmente por ressonância magnética (46% dos casos). Os dois diagnósticos mais frequentes foram a neoplasia papilar intraductal mucinosa (43,3%), e o cistoadenoma seroso (26%). Vinte e nove pacientes foram submetidos a operação (33,3%). O procedimento cirúrgico mais comum foi a pancreatectomia corpo-caudal associada à esplenectomia em 19 casos (65,5%). Entre os pacientes operados, 11 tiveram o diagnóstico de câncer. Nenhum dos pacientes seguidos teve o diagnóstico de câncer. Conclusões: a ressonância magnética apresentou boa acurácia, particularmente no diagnóstico da neoplasia papilar intraductal mucinosa. As diretrizes da Associação Internacional de Pancreatologia da forma que foram aplicadas no presente estudo, mostraram valor preditivo negativo para o câncer de 100%. O desenvolvimento de estratégias diagnósticas com melhor acurácia podem reduzir o número de cirurgias desnecessárias.

Ultrasonido endoscópico en patologías del páncreas / Endoscopic ultrasound in pancreatic diseases

El ultrasonido endoscópico (EUS) ha revolucionado el diagnóstico y el manejo de muchas patologías de la vía digestiva, particularmente la patología pancreática, convirtiéndose en un examen prácticamente imprescindible en el abordaje diagnóstico y terapéutico de un paciente con un problema de páncreas. Es necesario dejar en claro que el método no es único y que para lograr una sensibilidad alta y cumplir el objetivo de realizar lo más adecuado, debe sumarse a otros métodos de acuerdo a cada caso, como la ecografía, la tomografía axial computarizada (TAC), la resonancia magnética (MRI) en sus diferentes modalidades, y las pruebas del laboratorio clínico microbiológico y patología. En este artículo se revisarán algunos casos de enfermedades evaluadas con este método, que muestran por qué el EUS, es una herramienta clave para el médico de urgencias y de consulta externa, el internista, el cirujano, el médico del servicio hospitalario y el personal de salud en general, al momento de definir, clasificar y orientar el manejo de determinadas patologías en el tubo digestivo. El EUS es una importante ayuda y no debe ser extraña al personal médico, debe tenerla presente junto a las demás pruebas diagnósticas en patología pancreática. Se señalarán los aspectos más relevantes en cada caso y las indicaciones del EUS.

Endoscopic ultrasound (EUS) has revolutionized the diagnosis and management of many diseases of the digestive tract, particularly the pancreatic ones, becoming a practically essential test in the diagnosis and therapeutic management of a patient with a pancreatic problem. It's necessary to establish the final diagnosis are necesary many tests to achive high sensitivity. It should join with other methods according to each case, such as ultrasound, computed tomography (CT), magnetic resonance imaging (MRI) in its various forms, and chemical, microbiological and pathology tests. In this article we reviewed some cases of pathologies evaluated by this diagnosis test, which demonstrate why the EUS, is a key for the emergency and outpatient physician, internist, surgeon, doctor of the hospital service and staff health in general, when defining, classifying and guide the management of certain diseases in the digestive tract. The EUS is an important tool and should not be foreign to the medical staff, who must consider it, with other diagnostic tests for pancreatic disease. This article point out the most important aspects in each case and indications of EUS.

Aportes de la ecografía endoscópica a las lesiones quísticas del páncreas / [Contributions of endoscopic ultrasound to pancreatic cystic lesions].

Cystic lesions of the pancreas are peculiar in relation to their diagnosis and treatment. The use of endoscopic ultrasonography (EUS) has provided better sensitivity and specificity to differentiate benign from malignant cysts, condition that provides an early diagnosis and an effective and definite treatment.