Why get tested?
To determine whether a solid tumor, such as of the lung (non small cell), head and neck, colon, pancreas, or breast, is positive for EGFR, which helps to guide treatment and determine prognosis

When to get tested?
If you have been diagnosed with certain invasive cancers and your doctor wants to determine whether EGFR is being over-expressed in the tumor

Sample required?
A sample of tumor tissue obtained during a biopsy