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FE-SEM images for specimen 7. (A) Benign stromal and benign epithelial, and (B) cancer stromal and cancer epithelial. The benign epithelial tissues were seen as compact and organized. The appearance of cancer regions, in comparison, not only reveals increased cellularity but also shows disorganization and increased fenestration. In addition to the coarse bundles of collagen in normal stromal images, the tumor stromal regions display more intricate architecture.
