Correction to: Assessment of intratumor immune-microenvironment in colorectal cancers with extranodal extension of nodal metastases (Cancer Cell International (2018) 18 (131) DOI: 10.1186/s12935-018-0634-8)

Following publication of the original article [1], it has been brought to our attention that an incorrect Sequenom MassArray trace and an incorrect nomenclature were used to represent the PIK3CA p.E545A mutation in Fig. 2b. The correct Fig. 2b is shown in this erratum. The authors apologize for the confusion. (Figure Presented)