GEOapplication/xmlftp://ftp.ncbi.nlm.nih.gov/geo/series/GSE348nnn/GSE348584/primaryOK200OtherHomo sapiensOtherhttps://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE348584GEOGSEfalseA single cell and spatial atlas of preinvasive breast cancerDuctal carcinoma in situ (DCIS) is the most common preinvasive breast cancer, however our knowledge of the DCIS tumor microenvironment (TME) remains limited. We constructed a comprehensive atlas of the TME in estrogen-receptor positive DCIS using fresh samples collected from normal breast tissues, DCIS and invasive breast cancers. This Series only contains the Xenium samples, for the Visium samples see GSE348919.2026/09/25GSE348584GSM10075609GSM10075608GSM10075618GSM10075607GSM10075606GSM10075617GSM10075616GSM10075605GSM10075604GSM10075615GSM10075614GSM10075613GSM10075612GSM10075611GSM1007561033762348584Homo sapiens