Figure 4
From: Stromal vapors for real-time molecular guidance of breast-conserving surgery

DESI-MS profiles discriminate tumor border stroma (TBS) and tumor remote stroma (TRS). (A) Confusion matrix (mass range m/z 200–400). (B) Histology and molecular distribution of lactate dimer (m/z 201.04) in a histologically normal stroma surrounding an invasive ductal carcinoma.