Research Article

Mucinous Histology, BRCA1/2 Mutations, and Elevated Tumor Mutational Burden in Colorectal Cancer

Table 5

Tumor mutation burden (TMB) of the prospective cohort. Mucinous (MC, n = 9) tumors have higher TMB versus adenocarcinoma cancers (AC, n = 5), .

Number of patientsAverage TMB (mut/megabase)High TMBLow TMB

Mucinous943.073, 33%6, 66%
 Mucinous BRCA mut484.032, 50%2, 50%
 Mucinous BRCA WT510.31, 20%4, 80%

Adenocarcinoma55.90, 0%5, 100%
 Adenocarcinoma BRCA mut24.910, 0%2, 100%
 Adenocarcinoma BRCA WT36.560, 0%3, 100%

Number of patients, % of patients with high/intermediate/low TMB. High TMB using standard cutoff of >20.