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Paraffin gauze bolus as tissue compensator in photon irradiation for mycosis fungoides – regarding a case study

Paraffin gauze bolus as tissue compensator in photon irradiation for mycosis fungoides –... Abstract Introduction: Total skin electron beam therapy is a treatment option in patients with mycosis fungoides (MF) affecting a significant amount of the body surface. For patients with involvement of soles and interdigital folds, however, this approach is ineffective, requiring alternatives such as localised radiotherapy (RT). Although electron beams are well suited for superficial lesions, on irregular surfaces it provides inadequate tumour coverage and excess dose variance, requiring photon irradiation with tissue compensation. Methods: We present the case of a patient with extensive cutaneous MF with skin lesions spread over both lower limbs and treated on these affected areas with photon beam RT. Long sheets of paraffin gauze dressings were used to create a 0·5-cm-thick bolus. The patient received a single fraction of 8 Gy. In vivo dosimetry using Gafchromic films was performed. Results: After 3 months, a complete response was achieved. In this case, paraffin gauze bolus proved to be an inexpensive, convenient, effective and flexible method for irregular superficial cancer irradiations. Conclusion: Paraffin gauze bolus is a suitable option for irregular contours. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Radiotherapy in Practice Cambridge University Press

Paraffin gauze bolus as tissue compensator in photon irradiation for mycosis fungoides – regarding a case study

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References (25)

Publisher
Cambridge University Press
Copyright
© The Author(s), 2023. Published by Cambridge University Press
ISSN
1467-1131
eISSN
1460-3969
DOI
10.1017/S1460396923000109
Publisher site
See Article on Publisher Site

Abstract

Abstract Introduction: Total skin electron beam therapy is a treatment option in patients with mycosis fungoides (MF) affecting a significant amount of the body surface. For patients with involvement of soles and interdigital folds, however, this approach is ineffective, requiring alternatives such as localised radiotherapy (RT). Although electron beams are well suited for superficial lesions, on irregular surfaces it provides inadequate tumour coverage and excess dose variance, requiring photon irradiation with tissue compensation. Methods: We present the case of a patient with extensive cutaneous MF with skin lesions spread over both lower limbs and treated on these affected areas with photon beam RT. Long sheets of paraffin gauze dressings were used to create a 0·5-cm-thick bolus. The patient received a single fraction of 8 Gy. In vivo dosimetry using Gafchromic films was performed. Results: After 3 months, a complete response was achieved. In this case, paraffin gauze bolus proved to be an inexpensive, convenient, effective and flexible method for irregular superficial cancer irradiations. Conclusion: Paraffin gauze bolus is a suitable option for irregular contours.

Journal

Journal of Radiotherapy in PracticeCambridge University Press

Published: Feb 28, 2023

Keywords: bolus; in vivo dosimetry; paraffin gaze; radiotherapy; superficial tumour; treatment planning

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