CDK4

Detects a cyclin-dependent kinase often activated in tumors. Useful for distinguishing atypical lipomatous tumor/well-differentiated liposarcoma (positive) from benign adipocytic neoplasms (negative).

Synonyms
Cyclin-Dependent Kinase 4
Turnaround Time
24 hrs
Methodology
IHC
Specimen Requirements

Tissue Block: Formalin-fixed, paraffin-embedded (FFPE) tumor block preferred.

Unstained Slides: Recommended 2 charged slides per stain requested (minimum of 1 slide per stain),baked or unbaked.

Fixation: Tissue must be fixed in 10% neutral buffered formalin for 6–72 hours.

Storage and Transportation

Use cold pack for transport. Make sure cold pack is not in direct contact with specimen.

CPT Codes
88342x1 or 88341x1