Squamous Cell Cancer of the Mouth: Irregular, necrotic appearing tissue on the inside of the mouth due to extensive squamous cell cancer. Patient has limited ability to open his mouth (aka trismus) as a result of the infiltrating cancer. Charlie Goldberg, M.D. - UCSD Catalog of Clinical Images #Clinical #Photo #SCCa #SquamousCell #Cancer #Trismus #Oral #Palate #UCSDH