title: [Radiotherapy of carcinoma of the auditory canal].
abstract: From 1973 through 1986, twelve patients suffering from carcinomas of the outer auditory canal were irradiated at the Radiologic Hospital of Essen. The five-year survival was 64% after postoperative irradiation and 0% after irradiation alone. Considering the data communicated by other authors, the following therapy recommendations can be deduced: early stages where bones or cartilages are not involved represent an indication for sole operation. These tumors can be successfully treated by sole radiotherapy, too. In case of greater tumors, combined surgery and postoperative radiotherapy is the most favorable method. Besides a high total dose (50 to 60 Gy for microscopic tumor residues, about 70 Gy for macroscopic tumor residues), a sufficiently great target volume has to be chosen which includes the ear, the temporal bone, the preauricular lymph nodes and the angle of mandible. To prevent bone and cartilage necroses, it is recommended to restrict the individual doses to 1.8 to 2 Gy each.
authors.affiliation: Strahlenklinik, Universität Essen.
authors.forename: W
authors.initials: W
authors.lastname: Sauerwein
authors.forename: H J
authors.initials: HJ
authors.lastname: Feldmann
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002280:Basal Cell Carcinoma / Q000401:mortality / Q000532:radiotherapy* / Q000601:surgery; D002294:Carcinoma, Squamous Cell / Q000401:mortality / Q000532:radiotherapy* / Q000601:surgery; D002588:Cesium Radioisotopes / Q000627:therapeutic use; D003037:Cobalt Radioisotopes / Q000627:therapeutic use; D003131:Combined Modality Therapy; D004424:Ear Canal; D004428:Ear Neoplasms / Q000401:mortality / Q000532:radiotherapy* / Q000601:surgery; D005260:Female; D006801:Humans; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D011182:Postoperative Care; D011867:Radioisotope Teletherapy; D011879:Radiotherapy Dosage
chemical_list: D002588:Cesium Radioisotopes; D003037:Cobalt Radioisotopes
vernacular_title: Beitrag zur Strahlentherapie der Gehörgangskarzinome.