<prompt> True about Ackermans tumor IsIt is a highly malignant tumorVerrucous carcinoma of the larynxRadiotherapy is the treatment of choiceSpreads via lymphatics in early stage itself  <response>: It is a low grade locally aggressive malignancy. Well differentiated squaumous cell carcinoma with very low metastasis rate.Radiotherapy is contraindicated as it can produce anaplastic change. 