Transcellular oxalate transport is thought to be mediated by the SLC26A family anion exchangers SLC26A6 (also known as PAT1) in small intestine and SLC26A3 (originally named downregulated in adenoma [DRA]) in colon, with net oxalate secretion in small intestine and net absorption in colon under normal conditions (13). Here, SLC26A3 is linked to adenoma.