KRT19 and metabolic dysfunction-associated steatohepatitis: The aim of this study is to use digital pathology and the support of software image analysis for a quantitative assessment of immunohistochemical expression of CK7, CK19, and EpCAM in NASH liver biopsies with C and H patterns and with advanced stages of fibrosis, to verify the reproducibility of the results obtained from the semi-quantitative evaluation of the observer, in order to provide the first data useful for further studies for the creation of AI algorithms.