Probably 5 to 10% of colon cancers appear to be genetically inherited,
a number that's likely to increase. Familial colonic polyposis is the
best known of these inherited tumors, with almost all affected
individuals getting colon cancer at an early age. Hereditary
nonpolyposis cancer is more recent
I work with many GI biopsies and occassionally we send off slides for testing
for MSI (Microsattelite Instability). This is a test for Hereditary
Nonpolyposis Colorectal Cancer (HNPCC), also known as Lynch Sydrome. The IHC
tests for normal gene expression. You can "google" HNPCC or MSI and fin
