FLI1 and gastric adenocarcinoma: In order to examine which cells in gastric adenocarcinomas and pre-cancer lesions show altered FLI1 expression, we analyzed formalin fixed paraffin embedded (FFPE) tissues by immunohistochemistry (IHC) for FLI1, and analyzed the expression pattern of FLI1 in situ in human stomach samples, including normal stomach antrum and body/fundus, intestinal metaplasia, dysplasia, and invasive adenocarcinoma.