Histology is one of the foundations of modern diagnostics. When physicians want to determine whether tissue is pathologically altered, they rely on microscopic tissue analysis: They cut the tissue into ultrathin sections, stain it with special dyes, and examine it under a light microscope. In this manner, physicians can identify whether a tumor is present and, if so, what kind of tumor it is—thereby enabling informed therapeutic decisions. In addition, doctors often assess during surgery whether all altered tissue has already been removed or further intervention is required.
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