A case of deep vein thrombosis after surgery for mesopharyngeal cancer

We report a case of deep vein thrombosis after surgery for mesopharyngeal cancer (T4N3M0). The patient showed swelling of the thigh on the right side and was diagnosed as deep vein thrombosis using RI venoscintigraphy. Heparin as an anticoagulant was effective for the disease. The number of cases of the disease may increase in the field of otorhinolaryngology and head and neck surgery. We emphasize the importance of selection of high risk patients and preventive treatment for these patients as well as early detection and therapy for deep vein thrombosis.