has to be staged before commenting on prognosis. Surgery is the mainstay of treatment. IF it is local disease it cane be removed with surgery but in case it has locoregional spread to lymph
node chance of cure decreases. Unfortunately adjuvant treatment does not help very much. they are very poor responder to chemoradiotherapy
. Biologics have some role. Consult you oncologist
regarding staging and treatment options for your case. take care.