2006
DOI: 10.3748/wjg.v12.i11.1786
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Complete pancreatic heterotopia of gallbladder with hypertrophic duct simulating an adenomyoma

Abstract: The gallbladder is an unusual location of pancreatic heterotopia, defined as the presence of pancreatic tissue lacking anatomical and vascular continuity with the main body of the gland. A 28-year-old man presented with anorexia, nausea and pain in the right upper abdomen. On physical examination, the abdomen was tender to palpation and Murphy sign was positive. The patient underwent a cholecystecomy. This case, in our opinion, is very interesting since it permits to consider a controversial issue in the patho… Show more

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Cited by 11 publications
(11 citation statements)
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“…The first one suggests the separation of heterotopic pancreatic tissue from the primitive pancreas during embryonic rotation. The second one suggests that pancreatic tissue is abnormally transported by the longitudinal growth of the intestines from lateral budding of the rudimentary pancreatic duct while penetrating the intestinal wall [5,6]. There also exists a theory based on abnormalities in the Notch signaling system, that lead to changes in differentiation in the developing foregut endoderm [7].…”
Section: Resultsmentioning
confidence: 99%
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“…The first one suggests the separation of heterotopic pancreatic tissue from the primitive pancreas during embryonic rotation. The second one suggests that pancreatic tissue is abnormally transported by the longitudinal growth of the intestines from lateral budding of the rudimentary pancreatic duct while penetrating the intestinal wall [5,6]. There also exists a theory based on abnormalities in the Notch signaling system, that lead to changes in differentiation in the developing foregut endoderm [7].…”
Section: Resultsmentioning
confidence: 99%
“…Immunohistochemical study which localizes cells positive for the presence of CK7, CK19, synaptophysin and chromogranin A, may help to detect exocrine and endocrine components of heterotopic pancreatic tissue. Only a few authors used immunohistochemistry for detection of pancreatic heterotopia finding tubular and epithelial structures which showed immunopositive reactions to CK 7,8,18,19 and to CA 19-9 [3,5,11]. Additionally, exocrine activity was confirmed by immunoreactivity to alpha-1-antitrypsin and alpha-1-chymotrypsin [3].…”
Section: Resultsmentioning
confidence: 99%
“…La presencia de páncreas heterotópico vesicular es infrecuente, las series publicadas mencionan que las localizaciones más frecuentes son el estómago, duodeno, ámpula de Vater, yeyuno, divertículo de Meckel, ileón, apéndice, cicatriz umbilical, mediastino, bazo y omento mayor 1,7,9,10,12 . No existen síntomas específicos de heterotopia pancreática localizada en la vesícula biliar, todos los casos publicados ocurrieron en pacientes operados por colecistitis aguda o crónica litiásica y alitiásica [2][3][4][7][8][9][10][11][12][13][14] . En algunos pacientes, la causa de los síntomas agudos fue la inflamación del tejido pancreático o pancreatitis aguda del coristoma 10 .…”
Section: Discussionunclassified
“…Encontramos un solo estudio inmunohistoquí-mico sobre un coristoma pancreático localizado en la vesicular biliar 9 , nosotros utilizamos varios marcadores inmunohistoquímicos con la intención de identificar las estructuras y caracterizar adecuadamente este coristoma. Se ha reportado que la vimentina es un marcador de células proliferativas en los conductos pancreáticos 16 , sin embargo otros estudios reportaron inmunorreactividad negativa para vimentina en células de los conductos pancreáticos 9 , este hecho se confirma en nuestros casos, en los que ninguna estructura tubular pancreática fue reactiva a vimentina.…”
Section: A S O S C L í N I C O Sunclassified
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