Neck involvement in early carcinoma of tongue. Is elective neck dissection warranted?
The overall micrometastases rate in our patients (32%) warrants elective neck dissection in early cases also. The incidence of metastases to level IV and V from T1-T2 oral tongue cancer is low so these lymph nodes should be removed only when there is intraoperative suspicion of extensive metastases in levels I, II or III., otherwise supraomohyoid neck dissection is sufficient.
Our results show that natural isolates of psychrotolerant B. thuringiensis occur in soil and milk, and suggest that psychrotolerance is determined by cspA.