PMID- 37964583 OWN - NLM STAT- MEDLINE DCOM- 20231216 LR - 20231216 IS - 1804-7521 (Electronic) IS - 1213-8118 (Linking) VI - 167 IP - 4 DP - 2023 Dec TI - The contribution of new methods in cytology for increasing sensitivity in the diagnosis of extrahepatic bile duct lesions. PG - 309-318 LID - 10.5507/bp.2023.041 [doi] AB - The aim of this review is to provide a comprehensive analysis of the existing literature pertaining to cytology of extrahepatic bile ducts. A search using the keywords "biliary brush cytology" was conducted in the PubMed database, with a focus on recent articles. The inclusion criteria primarily encompassed publications addressing problematic biliary stenosis. Emphasis was placed on identifying articles that explored innovative or less-utilized examination techniques aimed at enhancing the sensitivity of cytological examination. This review presents a comprehensive overview of the various types of materials used in sampling and the corresponding sampling methods. Additionally, it explores cytological and cytogenetic techniques, such as fluorescence in situ hybridization (FISH) and genetic methods (miRNA, NGS, cfDNA). These techniques possess the potential to improve the accuracy of diagnosing bile duct tumors, although their sensitivity varies. Furthermore, their utilization can facilitate early therapy, which plays a crucial role in patient prognosis. Each examination is always dependent on the quality and quantity of material delivered. A higher sensitivity of these examinations can be achieved by combining biliary cytology and other complementary methods. FAU - Kurfurstova, Daniela AU - Kurfurstova D AD - Department of Clinical and Molecular Pathology, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacky University Olomouc, 779 00 Olomouc, Czech Republic. FAU - Slobodova, Zuzana AU - Slobodova Z AD - Department of Clinical and Molecular Pathology, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacky University Olomouc, 779 00 Olomouc, Czech Republic. FAU - Zoundjiekpon, Vincent AU - Zoundjiekpon V AD - 2nd Department of Internal Medicine - Gastroenterology and Geriatrics, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacky University Olomouc, 779 00 Olomouc, Czech Republic. FAU - Urban, Ondrej AU - Urban O AD - 2nd Department of Internal Medicine - Gastroenterology and Geriatrics, University Hospital Olomouc and Faculty of Medicine and Dentistry, Palacky University Olomouc, 779 00 Olomouc, Czech Republic. LA - eng PT - Journal Article PT - Review DEP - 20231114 PL - Czech Republic TA - Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub JT - Biomedical papers of the Medical Faculty of the University Palacky, Olomouc, Czechoslovakia JID - 101140142 SB - IM MH - Humans MH - In Situ Hybridization, Fluorescence MH - Prospective Studies MH - *Bile Ducts, Extrahepatic/pathology MH - Cytodiagnosis/methods MH - *Bile Duct Neoplasms/diagnosis/genetics/pathology MH - Sensitivity and Specificity OTO - NOTNLM OT - cytology, fluorescence in situ hybridization OT - diagnosis of biliary strictures OT - next generation sequencing OT - sensitivity COIS- The authors report no conflicts of interest in this work. EDAT- 2023/11/15 06:42 MHDA- 2023/12/17 13:19 CRDT- 2023/11/15 03:46 PHST- 2023/03/21 00:00 [received] PHST- 2023/10/12 00:00 [accepted] PHST- 2023/12/17 13:19 [medline] PHST- 2023/11/15 06:42 [pubmed] PHST- 2023/11/15 03:46 [entrez] AID - 10.5507/bp.2023.041 [doi] PST - ppublish SO - Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub. 2023 Dec;167(4):309-318. doi: 10.5507/bp.2023.041. Epub 2023 Nov 14.