Article Text

other Versions

PDF
Transpalpebral proton beam radiotherapy of choroidal melanoma
  1. Lazaros Konstantinidis1,
  2. Dawn Roberts2,
  3. R Douglas Errington3,
  4. Andrzej Kacperek3,
  5. Heinrich Heimann1,
  6. Bertil Damato4
  1. 1Vitreoretinal and Ocular Oncology Service, Royal Liverpool University Hospital, Liverpool, UK
  2. 2Liverpool Ocular Oncology Research Group, Molecular and Clinical Cancer Medicine, University of Liverpool, Liverpool, UK
  3. 3Douglas Cyclotron, Clatterbridge Cancer Centre, Wirral, UK
  4. 4Ocular Oncology Service, Departments of Ophthalmology and Radiation Oncology, University of California, San Francisco, USA
  1. Correspondence to Dr Bertil Damato, Ocular Oncology Service, University of California, San Francisco, 10 Koret Way, K304, San Francisco, CA 94143-0730, USA; DamatoB{at}Vision.UCSF.edu

Abstract

Background Collateral damage to upper eyelid margin during proton beam radiotherapy (PBR) for choroidal melanoma may cause squamous metaplasia of the tarsal conjunctiva with keratinisation, corneal irritation, discomfort and, rarely, corneal perforation.

We evaluated transpalpebral PBR as a means of avoiding collateral damage to the upper eyelid margin without increasing the risk of failure of local tumour control.

Methods Retrospective study of consecutive patients who underwent PBR for choroidal melanoma between 1992 and 2007 at the Royal Liverpool University Hospital and the Douglas Cyclotron at Clatterbridge Cancer Centre, UK.

Results Sixty-three patients were included in this study. Mean basal tumour diameter and tumour thickness were 11.8 mm and 3.6 mm, respectively. PBR mean beam range and modulation were 26.5 mm and 16.9 mm respectively. The eyelid margin was included in the radiation field in 15 (24%) eyes. The median follow-up was 2.5 years. Local tumour recurrence developed in 2 (3.2%) patients. In these two cases that developed tumour recurrence the transpalpebral treatment did not involve the eyelid margin. Six (9.5%) patients died of metastatic disease. No eyelid or ocular surface problems developed in any of the 48 patients who were treated without eyelid rim involvement, while 7 of the 15 patients with unavoidable irradiation of the eyelid rim developed some degree of madarosis. These seven patients all received more than 26.55 proton Gy to the eyelid margin. Symptoms, such as grittiness occurred in 12% of 48 patients without eyelid margin irradiation as compared with 53% of 15 patients whose lid margin was irradiated.

Conclusions Transpalpebral PBR of choroidal melanoma avoids eyelid and ocular surface complications without increasing failure of local tumour control.

  • Choroid
  • Eye Lids
  • Neoplasia
  • Treatment other

Statistics from Altmetric.com

Request permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.

Linked Articles

  • At a glance
    Keith Barton James Chodosh Jost Jonas