Given that percental proportions of each staining category varied within one given sample, cancer cells with a weak membranous IGF1R immunostaining (m-IGF1R 1+) were detected in 123 (76.9%) and cancer cells with a strong membranous immunostaining (m-IGF1R 2+) were seen in 91 (56.9%) of all samples. Here, IGF1R is linked to cancer.