Cesium implant for tongue carcinoma with a thickness of 1.5 cm or more: cases successfully treated with a Modified Manchester System.
OBJECTIVE
Deciding on treatment carcinoma of the tongue when the tumor has a thickness of 1.5 cm or more is difficult. Surgery often requires wide resection and re-construction, leading to considerable functional impairment. A cesium implant is an attractive option, but according to the Manchester System, a two plane implant is needed.


METHODS
According to the textbook, a tumor is sandwiched between the needles, which are implanted at the edge of the tumor. This may cause an unnecessarily high dose to the outer surface of the tongue, which sometimes leads to a persistent ulcer. To avoid this complication, we invented a modified implantation method, and applied the method to five consecutive patients.


RESULTS
With a minimum follow-up of 2 years, all primary tumors in 5 consecutive patients have been controlled. No complications occurred in soft tissue of the tongue or in the mandible.


CONCLUSIONS
Our modified Manchester System was feasible and effective for tumors that has a thickness of 1.5 cm or more.
Nishioka
Takeshi
T
Department of Biomedical Sciences and Engineering, Faculty of Health Sciences, Graduate School of Health Sciences, Hokkaido University, Sapporo, Japan. trout@hs.hokudai.ac.jp
Fujino
Masaharu
M
Homma
Akihiro
A
Yamashita
Tetsuro
T
Sato
Akira
A
Ohmori
Keiichi
K
Obinata
Kenichi
K
Shirato
Hiroki
H
Notani
Kenichi
K
Nishio
Masamichi
M
D000328:Adult; D000368:Aged; D001918:Brachytherapy; D002588:Cesium Radioisotopes / Q000627:therapeutic use*; D006801:Humans; D008207:Lymphatic Metastasis; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D014062:Tongue Neoplasms / Q000473:pathology / Q000532:radiotherapy*
D002588:Cesium Radioisotopes