Three genes (60%; GOSR2 [GenBank:NM_004287], LOX [GenBank:NM_002317], and SULF-1 [GenBank:NM_001128206]) exhibited agreement with the previous data, strengthening the hypothesis that these genes are involved in the malignant process of DCIS. The gene discussed is SULF1; the disease is ductal breast carcinoma in situ.