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      Quistes de Colédoco: un diagnóstico inadvertido. Serie de casos

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          Abstract

          Las lesiones quísticas de vías biliares, constituyen una entidad, que rara vez se observa o diagnostica en el adulto. El motivo de este trabajo es mostrar la experiencia de un centro de referencia biliopancreática en el diagnóstico y tratamiento de quistes de colédoco. Usamos la clasificación de Todani para la descripción de los mismos. Fue un estudio Descriptivo y Retrospectivo con 502 colangiopancreatografías retrógradas endoscópicas y de ellas 20 casos de quistes de colédoco identificados mediante colangiografías de alta calidad.

          Translated abstract

          Cystic lesions of the bile ducts constitute an entity that is rarely seen or diagnosed in adults. The purpose of this study is to show the experience of a biliopancreatic referral center in the diagnosis and treatment of choledochus cysts. The Todani classification was used to describe them. It was a retrospective, descriptive study of 502 endoscopic retrograde cholangiopancreatographies and of these 20 cases of choledochal cysts were identified by high-quality cholangiographies.

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          Choledochal cysts: age of presentation, symptoms, and late complications related to Todani's classification.

          The aim of this study was to compare presentation, complications, diagnosis, and treatment of choledochal cysts in pediatric and adult patients. Forty-two patients were analyzed after subdivision into 3 groups: group A, less than 2 years (n = 10); group B, 2 to 16 years (n = 11); group C, greater than 16 years (n = 21). The cysts were classified as extrahepatic (n = 33), intrahepatic (n = 5), and combined (n = 4). Seventy-six percent of patients presented with abdominal pain, (20 of 21 group C), and 57% with jaundice, (10 of 10 group A). Cholangiocarcinoma occurred in 6 patients, 4 of whom had previously undergone internal drainage procedures. Excision of the extrahepatic cyst was performed in 27 of 37 patients. Five patients, of whom, 4 had cholangiocarcinoma, were beyond curative treatment at the time of diagnosis. Six patients had died at the closure of this study, 5 of them had carcinoma. Presenting symptoms are age dependent with jaundice prevailing in children and abdominal pain in adults. In view of the high risk of cholangiocarcinoma, early resection and not internal drainage is the appropriate treatment of extrahepatic cysts. Patients who had undergone internal drainage in the past still should undergo resection of the cyst. Copyright 2002, Elsevier Science (USA). All rights reserved.
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            Can MRCP replace the diagnostic role of ERCP for patients with choledochal cysts?

            MRCP is rapidly replacing diagnostic ERCP in various pancreaticobiliary diseases. This study was designed to evaluate the accuracy of MRCP in detecting and determining the extent of choledochal cysts, as well as associated ductal anomalies or lesions. The study design was an 8-year retrospective survey conducted at a tertiary referral center, Asan Medical Center (University of Ulsan College of Medicine, Seoul, Korea). There were 72 patients with choledochal cysts. All patients underwent both MRCP and ERCP. MRCP findings were compared with those of ERCP as the criterion standard. The overall detection rate of MRCP for choledochal cysts was 96% (69/72). The sensitivity, the specificity, the positive predictive value, and the negative predictive value of MRCP for classifying choledochal cysts according to Todani's classification were 81%, 90%, 86%, and 86% in type I, respectively; 73%, 100%, 100, and 95% in type III, respectively; 83%, 90%, 80%, and 91% in type IVa, respectively; 100%, 100%, 100%, and 100% in type IVb, respectively; and 100%, 100%, 100%, and 100% in type V, respectively. The sensitivity, the specificity, and the accuracy of MRCP for detecting ductal anomalies were 83%, 90%, and 86%, respectively. The detection rate of MRCP for concurrent cholangiocarcinoma and choledocholithiasis was 87% (13/15) and 100% (8/8), respectively. MRCP showed overall good accuracy in the detection and the classification of choledochal cysts and revealed associated cholangiocarcinoma and choledocholithiasis with excellent accuracy. MRCP, therefore, may supersede the diagnostic role of ERCP for the patients with choledochal cysts. However, MRCP showed limited capacity to detect minor ductal anomalies or small choledochocele.
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              Choledochal cysts: lessons from a 20 year experience.

              Cystic dilatation of the biliary tree is a rare congenital anomaly. To determine mode of presentation, diagnostic pitfalls, and long term outcome after surgery, 78 children (57 girls, 21 boys) with choledochal cyst treated between 1974 and 1994 were reviewed. Anatomical types were: Ic (n = 44), If (n = 28), IVa (n = 4), and V (n = 2); a common pancreaticobiliary channel was identified in 76% patients. Age at presentation ranged from 0-16 (median 2.2) years, six patients being diagnosed by prenatal ultrasonography. Of the 72 patients diagnosed postnatally, 50 (69%) presented with jaundice, associated with abdominal pain in 25 or a palpable mass in three, 13 (18%) presented with pain alone, and two (3%) with a palpable mass. The classic triad of jaundice, pain, and a right hypochondrial mass was present in only four (6%). Four children presented acutely after spontaneous perforation of a choledochal cyst, two presented with ascites and one cyst was discovered incidentally. Plasma and/or biliary amylase values were raised in 30 of 31 patients investigated for abdominal pain; seven had evidence of pancreatitis at operation. In 35 of 67 (52%) patients referred without previous surgery, symptoms had been present for more than one month, and in 14 of them for more than one year, before diagnosis. Delayed referral was due to misdiagnosis as hepatitis (n = 12), incomplete investigation of abdominal pain (n = 6), and failure to note the significance of ultrasonographic findings (n = 10). Two patients referred late died from liver failure. Of the 76 patients with type I or IV cysts, 59 underwent radical cyst excision and hepaticojejunostomy as a primary procedure and 10 as a secondary operation after previously unsuccessful surgery. Sixteen patients have been lost to follow up but most of the remainder are well after a mean period of 4.1 (0.1-13) years. Choledochal cysts are often misdiagnosed, but prognosis is excellent if radical excision is performed.
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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                gen
                Gen
                Gen
                Sociedad Venezolana de Gastroentereología (Caracas )
                0016-3503
                June 2011
                : 65
                : 2
                : 114-116
                Affiliations
                [1 ] Centro Médico de Caracas Venezuela
                [2 ] Clínica de Prevención del Cáncer Venezuela
                Article
                S0016-35032011000200010
                5ef7d33a-a463-4d3c-9682-c0fee13aaf37

                http://creativecommons.org/licenses/by/4.0/

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                SciELO Venezuela

                Self URI (journal page): http://www.scielo.org.ve/scielo.php?script=sci_serial&pid=0016-3503&lng=en

                Choledochal cysts,Endoscopic Retrograde Cholangiopancreatography,Quistes de Colédoco,Colangiopancreatografía Retrógrada Endoscópica

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