Journal
DIAGNOSTICS
Volume 12, Issue 4, Pages -Publisher
MDPI
DOI: 10.3390/diagnostics12040900
Keywords
endoscopic ultrasound; fine-needle aspiration; biopsy; genome; mutation; biliary tract cancer
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The poor prognosis of biliary tract cancer is due to the challenges in detecting cancer lesions and the lack of standard screening methods. Genomic analysis has shown promise in improving the accuracy of diagnosis for biliary tract cancer, and future diagnosis and treatment should be based on molecular and genetic analysis.
The undesired prognosis of biliary tract cancer is mainly attributed to the difficult detection of cancer lesions, including intraepithelial neoplasia and no standard examination for screening. In addition, pathological diagnosis of biliary stricture, whether it is malignant or benign, is not so easy, because of difficult optimal sampling by forceps biopsy and brush cytology, although various devices and methods for pathological diagnosis have been reported. Furthermore, we have to be careful about post-endoscopic retrograde cholangiography pancreatitis when we approach the biliary tract lesion via a transpapillary route. In order to improve the diagnostic accuracy, there have been several studies that indicate the feasibility and efficacy of genomic analysis for accurate diagnosis of biliary tract cancer by using pathological specimens, including endoscopic ultrasound-guided fine-needle aspiration/biopsy (EUS-FNA/FNB) samples. For efficient and precision medicine for patients with biliary tract cancer, future diagnosis and treatment should also be based on molecular and genetic analyses. In this article, we review and summarize the past knowledge and cutting edge of genomic testing for biliary tract cancer, using EUS-FNA/FNB specimens, and indicate some ingenuities in sample processing to promote effective clinical practice and future perspectives.
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