High-dose-rate brachytherapy boost for carcinoma of external auditory canal

Budrukkar, Ashwini; Bahl, Gaurav; Bhalavat, Rajendra; Laskar, Sarbani Ghosh; Agarwal, Jai Prakash; Jamema, Swamidas V.; Patil, Kalpana

doi:10.1016/j.brachy.2009.05.002

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Volume 8, Issue 4 , Pages 392-395, October 2009

High-dose-rate brachytherapy boost for carcinoma of external auditory canal

Ashwini Budrukkar
- Department of Radiation Oncology, Tata Memorial Hospital, Parel, Mumbai
- Corresponding author. Department of Radiation Oncology, Tata Memorial Hospital, Parel, Mumbai 400012, India. Tel.: +91-22-24177152; fax: +91-22-24146937.
Gaurav Bahl
- Department of Radiation Oncology, Tata Memorial Hospital, Parel, Mumbai
Rajendra Bhalavat
- Department of Radiation Oncology, Tata Memorial Hospital, Parel, Mumbai
Sarbani Ghosh Laskar
- Department of Radiation Oncology, Tata Memorial Hospital, Parel, Mumbai
Jai Prakash Agarwal
- Department of Radiation Oncology, Tata Memorial Hospital, Parel, Mumbai
Swamidas V. Jamema
- Department of Medical Physics, Tata Memorial Hospital, Parel, Mumbai
Kalpana Patil
- Department of Medical Physics, Tata Memorial Hospital, Parel, Mumbai

Received 4 June 2008; received in revised form 17 April 2009; accepted 8 May 2009. published online 07 September 2009.

Abstract

Purpose

To report dosimetry and outcome in a case of early stage carcinoma of external ear (T1N0M0) treated with radical radiotherapy alone using a combination of external beam radiotherapy (EBRT) and intracavitary irradiation with a high-dose-rate (HDR) ¹⁹²Ir remote afterloading system.

Methods and Methods

A 64-year-old gentleman who was diagnosed as T1N0M0 carcinoma of external ear was treated with combination of external beam radiation therapy followed by brachytherapy (BRT). A total dose of 40Gy was delivered by EBRT, following which a 6-Fr catheter for the HDR ¹⁹²Ir remote afterloader, fixed by a customized acrylic mold, was inserted into the external auditory canal (EAC) and a total intracavitary radiation dose of 22.5Gy (4.5Gy/F) was given.

Results

Evaluation at the completion of treatment and at the end of 4-year followup revealed no evidence of the disease.

Conclusions

In the radical treatment of early stage EAC carcinoma, combination of external beam radiation therapy and BRT may be a modality of choice for its efficacy, less severe side effects, and better cosmetic results.

Keywords: External auditory canal, Brachytherapy, Squamous cell carcinoma, Radiotherapy, High dose rate