The six genes that were related to the microenvironment (COL10A1, COL1A1, MFAP2, PRSS33, PRSS53 and MMP11) showed higher prediction probability in the recurrent DCIS cases, compared to DCIS without recurrence, and these became close to those of the IBC cases (Figure 7, right). Here, PRSS33 is linked to inflammatory breast carcinoma.