The case was confirmed as a squamous cell carcinoma of the tongue. This tumor has tobacco smoking and alcohol ingestion as major risk factors. These tumors usually arise from the ventrolateral aspect of the mid and posterior tongue. 

Whether CT or MRI is used these features should be assessed:

• size of tumor and tumor thickness
• extension across the midline
• extension beyond the intrinsic muscles of the tongue
• involvement of adjacent structures
  • neurovascular bundle and submandibular duct in the floor of mouth
  • mandible