Repressor of Silencing 1 (ROS1) immunohistochemistry is a qualitative screening assay to identify patients who are eligible for treatment of tyrosine kinase inhibitors (TKIs).

Test Code: ROS

System: VENTANA

Turnaround Time: 3 - 5 working days, upon sample receipt

Accepted Specimens: 

• FFPE Tissue/Cell Blocks
• FFPE Slides

Refer to Specimen Requirements for more information.