Targetable biomarkers for CRC, such as microsatellite instability‐high (MSI), wild‐type KRAS, wild‐type NRAS, V600E BRAF, and ERBB2 gene amplifications were found in 2.0%, 43.8%, 97.8%, 3.9%, and 2.3%, respectively, of PRH patients. The gene discussed is ERBB2; the disease is colorectal carcinoma.