Ultrasound heating in previously irradiated sites.
D002056:Burns / Q000209:etiology; D002294:Carcinoma, Squamous Cell / Q000628:therapy*; D006258:Head and Neck Neoplasms / Q000628:therapy*; D006801:Humans; D006979:Hyperthermia, Induced / Q000009:adverse effects; D009364:Neoplasm Recurrence, Local / Q000628:therapy*; D012881:Skin Temperature; D014464:Ultrasonic Therapy / Q000009:adverse effects