RAP1GAP and ductal breast carcinoma in situ: The mRNA expression levels of CCND3, DUSP10 and RAP1GAP were higher in TIL-rich DCIS compared to TIL-poor DCIS, with a median Log2 value of 5.60 vs. 3.50 for CCND3, 7.17 vs. 4.44 for DUSP10 and 6.20 vs. 3.58 for RAP1GAP, respectively.