Bladder Cancer FISH, Pathologist Review

TEST: 130080
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Synonyms

  • Urothelial Carcinoma, FISH
  • UroVysion®, FISH

Special Instructions

Specimens should be received at the laboratory within 72 hours postcollection for optimal testing. Specimens older than 72 hours will not be rejected; however, results not guaranteed. In these instances, clients should consider recollection if possible.

Expected Turnaround Time

4 - 5 days

Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.

Related Information

Specimen Requirements

Specimen

Urine

Volume

50 mL urine mixed with preservative in TCC Monitoring kit

Minimum Volume

33 mL urine mixed with preservative in TCC Monitoring kit

Container

TCC Monitoring kit (PeopleSoft item N° 44921). Other containers that are accepted, but not recommended: PreservCyt® vial, Cytology Special Studies Kit (PeopleSoft item N° 3203), or sterile urine container with Carbowax® fixative (two parts urine; one part fixative).

Collection

Step 1: Use the large, open cup in the kit to collect the urine specimen. First void of the day is preferred. Ensure that the urine specimen reaches the minimum fill line of 33 mL.

Step 2: Slowly pour urine into the smaller container to the maximum fill line of 90 mL.

Step 3: Tighten the lid until you hear a click in order to prevent leakage.

Storage Instructions

Specimen should be refrigerated at 2°C to 8°C and shipped on cool packs. Do not freeze.

Causes for Rejection

Incorrect fixative; significant contamination with blood obscuring bacterial overgrowth; inadequate specimen cellularity

Test Details

Use

The assay is designed to detect aneuploidy for chromosomes 3, 7, 17, and loss of the 9p21 locus via fluorescence in situ hybridization (FISH) in urine specimens from subjects with transitional cell carcinoma of the bladder. This assay does not detect other chromosomal or genetic alterations. Results are intended for use as a noninvasive method of monitoring for tumor recurrence in conjunction with cystoscopy in patients previously diagnosed with bladder cancer. The clinical interpretation of test results should be evaluated within the context of the patient's medical history and other diagnostic laboratory test results.

Limitations

Positive FISH results in the absence of other signs or symptoms of bladder cancer recurrence may be evidence of other urinary tract-related cancers (eg, ureter, urethra, renal, and/or prostate in males), and further patient follow-up may be helpful. Negative FISH results in the presence of other signs and symptoms of bladder cancer recurrence may need to be regarded as suspicious false-negative results; repeat testing may be indicated. Although the assay was designed to detect chromosome changes associated with most bladder cancers, there are some bladder cancers whose genetic changes are not targeted by this test.

Methodology

Fluorescence in situ hybridization (including diagnostic interpretation by MD pathologist)

References

Halling KC, King W, Sokolova IA, et al. A comparison of cytology and fluorescence in situ hybridization for the detection of urothelial carcinoma. J Urol. 2000 Nov; 164(5):1768-1775. 11025767
Sokolova IA, Halling KC, Jenkins RB, et al. The development of a multitarget, multicolor fluorescence in situ hybridization assay for the detection of urothelial carcinoma in urine. J Mol Diagn. 2000 Aug; 2(3):116-123. 11229514

LOINC® Map

Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
130080 Bladder Cancer FISH, MD Review 56030-0 130018 Bladder Cancer FISH Findings: 56030-0
130080 Bladder Cancer FISH, MD Review 56030-0 130019 Specimen Type: 31208-2
130080 Bladder Cancer FISH, MD Review 56030-0 130034 Specimen Description: 33511-7
130080 Bladder Cancer FISH, MD Review 56030-0 130035 Case Comment: 48767-8
130080 Bladder Cancer FISH, MD Review 56030-0 130036 Specimen Comment: 8251-1
130080 Bladder Cancer FISH, MD Review 56030-0 130059 Electronically signed: 19139-5
130080 Bladder Cancer FISH, MD Review 56030-0 130043 Clinician provided ICD-9: 52797-8
130080 Bladder Cancer FISH, MD Review 56030-0 130289 Clinician provided ICD-10: 52797-8
130080 Bladder Cancer FISH, MD Review 56030-0 130044 Pathologist provided ICD-9: 52797-8
130080 Bladder Cancer FISH, MD Review 56030-0 130290 Pathologist provided ICD-10: 52797-8
130080 Bladder Cancer FISH, MD Review 56030-0 130045 Clinical Data: 55752-0
130080 Bladder Cancer FISH, MD Review 56030-0 130046 CPT Codes: N/A
130080 Bladder Cancer FISH, MD Review 56030-0 130222 Disclaimer: N/A
130080 Bladder Cancer FISH, MD Review 56030-0 130042 Resulting PhD Name: 72486-4

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