Fig. 4From: Identification of a metastatic lung adenocarcinoma of the palate mucosa through genetic and histopathological analysis: a rare case report and literature reviewHistopathological findings for the mass of the palate mucosa. HE staining image with a loupe (a) and at a 200× magnification (b). An adenocarcinoma consisting of tubular or papillary proliferation of columnar-shaped tumor cells invading the subepithelial tissue. The tumor cells were positive for CK7 (c) and negative for TTF-1 (d), mammaglobin (e) and S-100 (f)Back to article page