Uroplakin III
Alias/Synonym: Urothelial Carcinoma
CPT Code: 88342
- Includes:
- Specimen Type, Preferred:
- Formalin fixed paraffin embedded tissue
- Specimen Type, Alternate:
- Sample Quantity, Preferred:
- 1 block
- 2 slides
- Sample Quantity, Minimum:
- N/A
- Transport Container:
- Paraffin block
- Unstained slides
- Transport Temperature:
- Room temperature
- Collection Instructions:
- Block and slide identifiers should be clearly written and match exactly with the specimen ID and specimen labeling as noted on the requisition.
- Slides should be positively charged and cut at 3-4 microns for each stain/antibody ordered.
- Specimen Stability:
- N/A
- Rejection Criteria:
- No liquid specimens.
- Uncharged slides
- Clinical Significance:
- Uroplakin III is present in the urothelial surface membrane of human renal pelvis, ureter, bladder and urethra. It is highly specific to uroepithelial tumors and may be a useful tool in the discrimination of bladder, renal and prostate cancers. Loss of Uroplakin III expression in bladder cancers has been associated with higher grade, muscle-invasive cancer and lymphovascular invasion.
- Limitations:
- Turnaround Time:
- 1 day(s)
- Reference Ranges:
- N/A