VIM and cancer: Cytology can assist in differentiating SGCs from non-neoplastic conditions as well as benign or malignant tumors that are not of epithelial origin in the salivary gland area [6,28]. The secretions typically show positive staining for periodic acid Schiff (PAS) and diastase-resistant material, along with positive staining for markers such as S-100, mammaglobin, vimentin, and cytokeratin-19.