[Early-stage carcinoma of the external auditory canal treated by intracavitary irradiation with HDR 192Ir-RALS: a case report].
We report a case of early-stage carcinoma of the external auditory canal treated by intracavitary irradiation with high-dose-rate (HDR) 192Ir-RALS after 40 Gy by external irradiation. We made an applicator that was inserted into the external auditory canal for the intracavitary irradiation, using a 9 Fr silicone catheter and resin. The total intracavitary radiation dosages were 20 Gy/8 Fr/4 weeks. No severe side effects were noted, and the tumor disappeared. RALS may be indicated for early carcinoma of the external auditory canal for its efficacy and lack of side effects.
Suzuki
Gen
G
Department of Radiology, Kurume University School of Medicine.
Hayabuchi
Naofumi
N
Kurata
Seiji
S
Aoki
Masatora
M
Nakashima
Tadashi
T
D001918:Brachytherapy / Q000295:instrumentation / Q000379:methods*; D002277:Carcinoma / Q000532:radiotherapy*; D004424:Ear Canal; D004428:Ear Neoplasms / Q000532:radiotherapy*; D005260:Female; D006801:Humans; D007496:Iridium Radioisotopes / Q000627:therapeutic use*; D008875:Middle Aged; D011879:Radiotherapy Dosage; D016896:Treatment Outcome
D007496:Iridium Radioisotopes