Squamous cell carcinoma 
      This tumor is similar to the same type of tumors found in other  anatomical sites: keratinizing or non-keratinizing atypical squamous cells are  found in true tissue fragments, as well as in cell clusters. The centre of the lesion  is frequently colliquated and necrotic, which results in a fluid aspirate resembling purulent material.
      
        
            | 
            | 
        
        
          Squamous cell carcinoma    |