I have gone through your query. You did not mention if the biopsy is excisional biopsy or a incisional biopsy. Rate of spread of tongue carcinoma can be assessed based on many factors like type of carcinoma,age of the patient and nutritional status etc. Your physician will do a complete head and neck scan, laryngoscopy, pharyngoscopy ,PET,CT,MRI and lymph node assesment for staging and grading the cancer. Surgery or radiotherapy can be determined depending on the type of cancer and lymphnode involvement. Patient should quit any tobacco habits, alcoholsim and follow a healthy life style. hope this helps.