Abstract
Two-photon excited fluorescence (TPEF) microscopy has become a powerful instrument for imaging unstained tissue samples in biomedical research. The purpose of this study was to determine whether TPEF imaging of histological sections without hematoxylin-eosin (H-E) stain can be used to characterize lesions and identify surgical margins in pancreatic metastasis from renal cell carcinoma (RCC). The specimens of a pancreatic metastasis from RCC, as well as a primary RCC from a patient, were examined by TPEF microscopy and compared with their corresponding H-E stained histopathological results. The results showed that high-resolution TPEF imaging of unstained histological sections of pancreatic metastasis from RCC can reveal that the typical morphology of the tissue and cells in cancer tissues is different from the normal pancreas. It also clearly presented histopathological features of the collagenous capsule, which is an important boundary symbol to identify normal and cancerous tissue and to instruct surgical operation. It indicated the feasibility of using TPEF microscopy to make an optical diagnosis of lesions and identify the surgical margins in pancreatic metastasis from RCC.
Published Version
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