Pancreatobiliary FISH
Ordering Recommendation
Detect aneuploidy for chromosomes 3, 7, and 17. Use in conjunction with current standard diagnostic procedures as an aid for diagnosis of pancreatic cancer.
New York DOH Approval Status
Specimen Required
Bile or pancreatic duct brushings, biliary stent, or fine needle aspirates of the pancreas in UroCyte Collection Kit (ARUP Supply #41440) available online through eSupply using ARUP Connect™ or contact Client Services at 800-522-2787. For specific instructions, refer to Specimen Collection & Handling.
Place specimen in Cytolyt or PreservCyt fixative vial. If the specimen is a brushing, submit the brush in the fixative. Specimen should be placed in fixative vial immediately after collection.
Ambient or refrigerated.
Frozen specimens.
Unfixed specimens not collected in Cytolyt or PreservCyt fixative.
Specimen source is required.
Ambient: 1 week from collection; Refrigerated: 1 week from collection; Frozen: Unacceptable
Methodology
Fluorescence in situ Hybridization (FISH)/Computer Assisted Analysis/Microscopy
Performed
Mon-Fri
Reported
4-14 days
Reference Interval
Negative: No evidence of numeric chromosomal aberrations associated with pancreatobiliary carcinoma identified.
Positive: Numeric chromosomal aberrations associated with pancreatobiliary carcinoma identified.
Interpretive Data
NEGATIVE results indicate a lack of evidence for the presence of numeric chromosomal abnormalities commonly associated with pancreatobiliary cancer within the cells collected in this specimen. Negative results in the presence of other symptoms/signs of pancreatobiliary carcinoma may suggest the possibility of a false negative test. In this circumstance, additional clinical studies to exclude pancreatobiliary carcinoma should be pursued, as clinically indicated.
Although this test was designed to detect genetic abnormality associated with most pancreatobiliary cancers, there will be some pancreatobiliary cancers whose genetic changes cannot be detected by this test.
POSITIVE results indicate the presence of one or more numeric chromosomal abnormalities commonly associated with pancreatobiliary carcinoma or other pancreatic malignancy from another site (bile or pancreatic duct brushings, biliary stent, orfi ne needle aspirates of the pancreas) within the cells collected in this specimen. Positive results in the absence of clinical documentation may require further clinical evaluation to exclude these as a source of the abnormal cells is justified.
UroVysion Bladder Cancer Kit probes were used to detect aneuploidy for chromosomes 3, 7, and 17 via fluorescence in situ hybridization (FISH). Results from this test are intended for use in conjunction with, and not in lieu of, current standard diagnostic proceduresas an aid for initial diagnosis of pancreatobiliary carcinoma or related sources.
Laboratory Developed Test (LDT)
Note
Results of this test must be interpreted in conjunction with clinical evidence and other laboratory testing and should not be used alone as a diagnosis of pancreatobiliary carcinoma.
A positive fluorescence in situ hybridization (FISH) result does not identify location or type of malignancy. FISH abnormalities may be associated with high-grade dysplasia or carcinoma in situ. Cytology and biopsy may help clarify such situations.
Hotline History
Hotline History
CPT Codes
88366
Components
Component Test Code* | Component Chart Name | LOINC |
---|---|---|
2002452 | Pancreatobiliary FISH Specimen Source | 66746-9 |
2002458 | Fixative | 8100-0 |
2002459 | Pancreatobiliary FISH Clinical History | 22636-5 |
2002463 | Pancreatobiliary FISH Gross Description | 22634-0 |
Aliases
- Bile Duct FISH
- Bile Duct Tumor
- Biliary Tract Malignancy FISH
- Cholangiocarcinoma FISH
- Cytology
- FISH
- Pancreas FISH
- UroVysion