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A Complex Case of Cholestasis in a Patient with ABCB4 and ABCB11 Mutations

dc.contributor.authorCardoso, M
dc.contributor.authorBranco, J
dc.contributor.authorAnapaz, V
dc.contributor.authorRodrigues, C
dc.contributor.authorCarvalho, R
dc.contributor.authorHorta, D
dc.contributor.authorMartins, A
dc.contributor.authorReis, J
dc.date.accessioned2019-01-28T10:01:55Z
dc.date.available2019-01-28T10:01:55Z
dc.date.issued2018
dc.description.abstractThe low-phospholipid-associated cholelithiasis (LPAC) syndrome is a form of symptomatic cholelithiasis occurring in young adults, characterized by recurrence of symptoms after cholecystectomy and presence of hepatolithiasis. The case refers to a healthy 39-year-old Caucasian male who presented with abdominal pain and jaundice. His blood tests showed conjugated hyperbilirubinemia and elevated liver enzymes (total bilirubin 6.65 mg/dL, γ-glutamyltransferase 699 IU/L) and abdominal computed tomography revealed dilation of common bile duct and left intrahepatic ducts. Magnetic resonance cholangiopancreatography identified choledocholithiasis, retrieved by endoscopic retrograde cholangiopancreatography, after which there was a worsening of jaundice (total bilirubin 23 mg/dL), which persisted for several weeks, possibly due to ciprofloxacin toxicity. After an extensive workup including liver biopsy, the identification of two foci of hepatolithiasis on reevaluation abdominal ultrasound raised the hypothesis of LPAC syndrome and the patient was started on ursodeoxycholic acid, with remarkable improvement. Genetic testing identified the mutation c.1954A>G (p.Arg652Gly) in ABCB4 gene (homozygous) and c.1331T>C (p.Val444Ala) in ABCB11 gene (heterozygous). In conclusion, we describe the unique case of an adult male with choledocholithiasis, hepatolithiasis, and persistent conjugated hyperbilirubinemia after retrieval of stones, fulfilling the criteria for LPAC syndrome and with possible superimposed drug-induced liver injury, in whom ABCB4 and ABCB11 mutations were found, both of which had not been previously described in association with LPAC.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationGE Port J Gastroenterol. 2018 Jun;25(4):189-194pt_PT
dc.identifier.doi10.1159/000484612pt_PT
dc.identifier.issn2387-1954
dc.identifier.urihttp://hdl.handle.net/10400.10/2090
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherSociedade Portuguesa de Gastrenterologiapt_PT
dc.relation.publisherversionhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC6029212/pdf/pjg-0025-0189.pdfpt_PT
dc.subjectIntrahepatic cholestasispt_PT
dc.subjectDrug-induced liver injurypt_PT
dc.titleA Complex Case of Cholestasis in a Patient with ABCB4 and ABCB11 Mutationspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.conferencePlaceBarcelonapt_PT
oaire.citation.endPage194pt_PT
oaire.citation.startPage189pt_PT
oaire.citation.titleGE - Portuguese Journal of Gastroenterologypt_PT
oaire.citation.volume25pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT

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