IHC in FFPE sections of 141 SGC samples including nine histological subtypes, mucoepidermoid carcinoma, adenoid cystic carcinoma, acinar cell carcinoma, adenocarcinoma, squamous cell carcinoma, salivary duct carcinoma and basal cell carcinoma, detected AEG-1 positivity in 96.5% cases with weak or no staining detected in normal tissues [117]. The gene discussed is MTDH; the disease is adenocarcinoma.