SMARCA4 and cancer: However, using this control panel, LoLoPicker called more false positives in the FFPE sample, UN5 (112 false calls, considering the only cancer-driving event was the SMARCA4 mutation), compared to 86 false calls (before filtering out dbSNP variants) using FFPE samples as our controls, even though the sample size of the FFPE-control panel was as small as 35.