Write a short essay (750 words maximum) in response to the following question:
The histopathology laboratory plays a critical role not only in the diagnosis of cancer but also in determining the selection of optimal treatment. Select ONE test performed in the histopathology laboratory that is used to guide treatment selection for colon cancer patients. Describe the principles of the test and how the results are used to guide treatment selection.
APA Referencing system must be adhere to. All note that reference list is not included in the overall word count.