In control samples, fluorescence intensity exclusive for IQGAP1 exhibited a relative intensity of 12.5 ± 2.5% in control tumor cells, 6.5 ± 1.5% specific for PALB2 alone, and co-localization of both markers was observed in only 5.0 ± 1.0% of signals. Here, IQGAP1 is linked to neoplasm.