Extended Data Fig. 8: Epithelial detachment on a serial section that did not undergo Xenium processing.

To verify that the epithelial detachment feature was not an artifact of Xenium processing, we took serial sections approximately 45 µm from the processed tissue section. H&E stains, shown here for sample VUILD48LA (NSIP diagnosis), show areas of epithelial detachment are present on both the original section (a,b) and the section that did not undergo Xenium processing (c,d). b and d show the areas marked with boxes in a and c, respectively. Brackets denote epithelial detachment. Scale bars represent 50 µm.