Research Article

The Distribution of Phosphatidylcholine Species in Superficial-Type Pharyngeal Carcinoma

Figure 2

IMS analyses of case 1. (a) HE staining was performed to distinguish the ROIs on the superficial and subepithelial invasive regions in STPSCC delimited by the line (scale bar: 1.0 mm). The box with the dashed line indicates the representative region of STPSCC. (b) Mass spectra of the superficial (A) and subepithelial invasive (B) regions of STPSCC in case 1 are shown. (c) Images of ions shown in Table 2 were reconstructed on the representative region. Upper and lower columns show the ion images of the signals with higher and lower intensity in the subepithelial invasive region and superficial region, respectively.
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