PTEN, IHC without Interpretation

Test Code
90228


CPT Codes
88342

Preferred Specimen
1 formalin fixed paraffin block


Minimum Volume
1 block


Other Acceptable Specimens
3 Slides Unstained, positively charged slides IHC Specimen Transport Kit


Instructions
Please include surgical pathology report.


Transport Container
IHC Specimen Transport Kit


Transport Temperature
Room temperature


Specimen Stability
Room temperature: Indefinitely
Refrigerated: Indefinitely
Frozen: Do Not Freeze


Methodology
Immunohistochemistry

Setup Schedule
Set up: Mon-Fri Morning; Report available: Next day


Reference Range
See Laboratory Report


Clinical Significance
The phosphatase PTEN is a tumor suppressor whose deletion (or less commonly mutation) is associated with tumor progression and results in loss of PTEN protein expression.


Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.