Classification of tongue cancer resection and treatment algorithm

Background and ObjectivesReconstruction of tongue cancer defects is challenging due to the complex anatomy and physiology of the tongue. Here, we classify patterns of tongue tissue loss and describe a treatment algorithm for achieving good functional and oncologic outcomes. MethodsWe retrospectively reviewed 50 tongue squamous-cell carcinomas surgically treated between January 2010-June 2015. Cancer resection and tongue reconstruction were stratified according to the missing anatomical subunits. ResultsA type 1 defect is a unilateral and marginal defect, not crossing the midline, and not extending to the posterior-third of the tongue. Type 2 involves the two-anterior-thirds of the mobile body, not crossing the midline, without posterior-third evolvement. Type 3 involves the two-anterior-thirds of the mobile body of the tongue with contralateral extension. Type 4 extends to the tongue base. Type 5 defect comprises any of the previous defects along with involvement of the floor of the mouth. Type 2 and 3 defects were the most common. Microvascular reconstruction was performed in 23 out of 50 patients. Complications included infection, partial necrosis, dehiscence, and microvascular thrombosis. ConclusionsOur classification system and treatment algorithm represent a reliable method of addressing management of tongue defects.