2019
Endogenous development of Cystoisospora belli in intestinal and biliary epithelium of humans
Dubey JP, Evason KJ, Walther Z. Endogenous development of Cystoisospora belli in intestinal and biliary epithelium of humans. Parasitology 2019, 146: 865-872. PMID: 30859916, DOI: 10.1017/s003118201900012x.Peer-Reviewed Original ResearchConceptsBiliary epitheliumC. belliEpithelial cellsCystoisospora belliSingle parasitophorous vacuoleDuodenal biopsiesBiliary tractDepressed immunityPAS-positive granulesHistopathologic diagnosisHost epithelial cellsBiopsy samplesDigestive disordersSame PVParasitophorous vacuoleParasite multipliesCertain inclusionTransmission cycleEpitheliumCoccidian parasitesAsexual stagesBelliMerozoitesCellsOocysts
2009
Isospora cholangiopathy: case study with histologic characterization and molecular confirmation
Walther Z, Topazian MD. Isospora cholangiopathy: case study with histologic characterization and molecular confirmation. Human Pathology 2009, 40: 1342-1346. PMID: 19447468, DOI: 10.1016/j.humpath.2009.01.020.Peer-Reviewed Case Reports and Technical NotesMeSH KeywordsAcquired Immunodeficiency SyndromeAdultAnimalsAnti-Infective AgentsAntiparasitic AgentsBile Ducts, ExtrahepaticBile Ducts, IntrahepaticBiopsyCholangiopancreatography, Endoscopic RetrogradeCholangitis, SclerosingHumansIsosporaIsosporiasisIvermectinMalePolymerase Chain ReactionTreatment OutcomeTrimethoprim, Sulfamethoxazole Drug CombinationConceptsAIDS patientsBile ductIsospora belliCommon bile duct biopsiesPolymerase chain reaction-based molecular analysisBile duct biopsyPrimary sclerosing cholangitisExtrahepatic bile ductRare opportunistic pathogenEndoscopic retrograde cholangiopancreatographyIntracellular protozoan parasiteDuct biopsySclerosing cholangitisUncommon causeAcute illnessHIV statusRadiologic findingsRetrograde cholangiopancreatographyTravelers' diarrheaWest African menHepatobiliary diseaseHistologic characterizationSmall intestineDiarrheaIsosporiasis
2005
Ileostomy Adenocarcinomas in the Setting of Ulcerative Colitis
Achneck HE, Wong IY, Kim PJ, Fernandes MA, Walther Z, Seymour NE, Jain D. Ileostomy Adenocarcinomas in the Setting of Ulcerative Colitis. Journal Of Clinical Gastroenterology 2005, 39: 396-400. PMID: 15815208, DOI: 10.1097/01.mcg.0000159216.39795.4a.Peer-Reviewed Case Reports and Technical NotesConceptsUlcerative colitisIleostomy siteLongstanding ulcerative colitisCases of adenocarcinomaSignet ring cellsAbundant extracellular mucinFamilial adenomatous polyposis coliIleostomy adenocarcinomaKock ileostomyMarked inflammationTotal proctocolectomyInitial biopsySubsequent biopsyCrohn's diseaseColon resectionNew ileostomyCytologic atypiaPrior historyExtracellular mucinAdenocarcinomaColitisIleostomyRare occurrenceDiseaseAdenomatous polyposis coli