GEOapplication/xmlftp://ftp.ncbi.nlm.nih.gov/geo/series/GSE348nnn/GSE348919/primaryOK200OtherHomo sapiensOtherhttps://www.ncbi.nlm.nih.gov/geo/query/acc.cgi?acc=GSE348919GEOGSEfalseA single cell and spatial atlas of preinvasive breast cancer [Visium ST]Ductal 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 is only for the Visium samples, see GSE348584 for the Xenium samples.2026/09/29GSE348919GSM10083689GSM10083686GSM10083685GSM10083696GSM10083688GSM10083687GSM10083693GSM10083692GSM10083684GSM10083695GSM10083694GSM10083683GSM10083691GSM1008369024676348919Homo sapiens