A case of subglottic carcinoma effectively treated with intraluminal irradiation using low dose rate iridium-192 thin wires combined with external beam irradiation. 2003

Masaki Wakisaka, and Nobukazu Fuwa, and Akira Matsumoto, and Hiroyuki Tachibana, and Takeshi Kodaira, and Kazuhisa Furutani, and Minoru Kamata, and Hiromu Mori
Department of Oncological Science, Division of Morphological Diagnosis and Less Invasive Therapy, Oita Medical University, Oita, Japan. wakisaka@oita-med.ac.jp

Subglottic carcinoma is rare and has a poor prognosis. It is usually treated with surgical resection, external beam irradiation (EBR) and/or a combination of both. Intraluminal irradiation (IR) as a curative treatment for subglottic carcinoma has never been reported. We report a case of subglottic carcinoma in a 66-year-old man, who was effectively treated with IR combined with EBR. IR was conducted using low dose rate iridium-192 thin wires at a subglottic mucosal dose of 5.1-6.0 Gy per fraction, with a total dose of 43.8 Gy in eight fractions. EBR was administered, using cobalt-60 and 6 MV X-rays delivered at 2 Gy per fraction, with a total dose of 66 Gy in 33 fractions. Complete response was obtained without serious complications and no recurrence occurred in the 79-month follow-up period. IR combined with EBR is useful as a potential curative treatment. It should be considered as one of the treatment options for subglottic carcinoma.

UI MeSH Term Description Entries
D007496 Iridium Radioisotopes Unstable isotopes of iridium that decay or disintegrate emitting radiation. Ir atoms with atomic weights 182-190, 192, and 194-198 are radioactive iridium isotopes. Radioisotopes, Iridium
D007822 Laryngeal Neoplasms Cancers or tumors of the LARYNX or any of its parts: the GLOTTIS; EPIGLOTTIS; LARYNGEAL CARTILAGES; LARYNGEAL MUSCLES; and VOCAL CORDS. Cancer of Larynx,Laryngeal Cancer,Larynx Neoplasms,Cancer of the Larynx,Larynx Cancer,Neoplasms, Laryngeal,Cancer, Laryngeal,Cancer, Larynx,Cancers, Laryngeal,Cancers, Larynx,Laryngeal Cancers,Laryngeal Neoplasm,Larynx Cancers,Larynx Neoplasm,Neoplasm, Laryngeal,Neoplasm, Larynx,Neoplasms, Larynx
D008297 Male Males
D001918 Brachytherapy A collective term for interstitial, intracavity, and surface radiotherapy. It uses small sealed or partly-sealed sources that may be placed on or near the body surface or within a natural body cavity or implanted directly into the tissues. Curietherapy,Implant Radiotherapy,Plaque Therapy, Radioisotope,Radioisotope Brachytherapy,Radiotherapy, Interstitial,Radiotherapy, Intracavity,Radiotherapy, Surface,Brachytherapy, Radioisotope,Interstitial Radiotherapy,Intracavity Radiotherapy,Radioisotope Plaque Therapy,Radiotherapy, Implant,Surface Radiotherapy,Therapy, Radioisotope Plaque
D002294 Carcinoma, Squamous Cell A carcinoma derived from stratified SQUAMOUS EPITHELIAL CELLS. It may also occur in sites where glandular or columnar epithelium is normally present. (From Stedman, 25th ed) Carcinoma, Epidermoid,Carcinoma, Planocellular,Carcinoma, Squamous,Squamous Cell Carcinoma,Carcinomas, Epidermoid,Carcinomas, Planocellular,Carcinomas, Squamous,Carcinomas, Squamous Cell,Epidermoid Carcinoma,Epidermoid Carcinomas,Planocellular Carcinoma,Planocellular Carcinomas,Squamous Carcinoma,Squamous Carcinomas,Squamous Cell Carcinomas
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly
D019583 Dose Fractionation, Radiation Administration of the total dose of radiation (RADIATION DOSAGE) in parts, at timed intervals. Radiotherapy Dose Fractionation,Dose Fractionation, Radiotherapy,Radiation Dose Fractionation,Dose Fractionations, Radiotherapy,Fractionation, Radiation Dose,Fractionation, Radiotherapy Dose,Fractionations, Radiotherapy Dose,Radiotherapy Dose Fractionations
D020266 Radiotherapy, Conformal A therapy using IONIZING RADIATION where there is improved dose homogeneity within the tumor and reduced dosage to uninvolved structures. The precise shaping of dose distribution is achieved via the use of computer-controlled multileaf collimators. Conformal Radiotherapy,3-D Conformal Radiotherapy,Three-Dimensional Conformal Radiotherapy,3-D Conformal Radiotherapies,Conformal Radiotherapies,Conformal Radiotherapies, 3-D,Conformal Radiotherapies, Three-Dimensional,Conformal Radiotherapy, 3-D,Conformal Radiotherapy, Three-Dimensional,Radiotherapies, 3-D Conformal,Radiotherapies, Conformal,Radiotherapies, Three-Dimensional Conformal,Radiotherapy, 3-D Conformal,Radiotherapy, Three-Dimensional Conformal,Three Dimensional Conformal Radiotherapy,Three-Dimensional Conformal Radiotherapies

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