FIELD: medicine, jaw-facial surgery. SUBSTANCE: without preliminary biopsy it is necessary to remove additionally a fiber of carotid triangle, partially - of mouth cavity bottom, anterior parapharyngeal space and paramandibular slit into a block with extra-casing removal of submandibular triangle content. Operation should be conducted under conditions of reduced regional blood circulation. EFFECT: higher efficiency to provide regionality and no chance for metastasing.
