Biliary Tract Malignancy

Routine Cytology

September 2011

Once the cytology laboratory receives a biliary tract brushing specimen they remove the cells from the brush and place them on a slide. These cells are then stained with a Pap stain and evaluated by a cytopathologist. As is shown on this slide, the cytopathologist interprets the cells on the slide as showing features that are either positive for malignancy, suspicious for malignancy, atypical (meaning that there are cells that are not normal but which cannot be definitely ascribed to a neoplastic process), or negative for malignancy.

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Routine Cytology

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Jump to section:

• Introduction
• Disclosures
• Pancreatobiliary Strictures (PBS)
• Primary Sclerosing Cholangitis (PSC)
• Pancreatobiliary Strictures (PBS)
• Bile Duct Brushings
• Current Clinical Practice
• Factors That Influence Sensitivity Of Cytology Specimens
• Routine Cytology
• Cancer Is A Genetic Disorder That Results From Mutations
• Detecting Tumor Cells in Cytology Specimens Using FISH
• Types of FISH Probes
• FISH
• Sensitivity and Specificity of Various Tests for Detection of Pancreatobiliary Strictures Malignancy
• What Do We Do With These Data?
• Bile Duct Pathology Calculator
• Representative Test Report Using Bile Duct Calculator
• Bile Duct Calculator
• Impact of Disease Prevalence on Positive Predictive Value (PPV)
• Case 1
• Case 1 Cytologic Findings
• Case 1
• Case 1 Test Report Using Bile Duct Calculator
• Case 1
• Case 1
• Case 2
• Case 2 Cytologic Findings
• Case 2
• Case 2: Test Report Using Bile Duct Calculator
• Case 2
• Case 2
• Case 3
• Case 3 Cytologic Findings
• Case 3
• Case 3
• Case 3: Test Report Using Bile Duct Calculator
• Case 3
• Case 3
• Summary
• Summary
• Results
• Questions?