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    Fractionated high dose rate brachytherapy moulds--a precise treatment for carcinoma of the pinna.

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    Authors
    Allan, Ernest
    Stanton, Anthony
    Pye, David A
    Collins, Conor D
    Perry, Lesley A
    Filby, Maeve
    Wilkinson, John M
    Affiliation
    Department of Clinical Oncology, Christie Hospital, Withington, Manchester, UK.
    Issue Date
    1998-09
    
    Metadata
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    Abstract
    BACKGROUND AND PURPOSE: The aim of this paper is to describe a fractionated high dose rate brachytherapy procedure for the treatment of small superficial cancers of the pinna and to report the outcome in a small series of patients. MATERIALS AND METHODS: Thirteen patients with superficial cancers of the pinna, not invading cartilage, have been treated and in the majority of cases the tumour thickness was determined by a transdermal ultrasound measurement. For the single-plane moulds the prescribed surface dose was 45 Gy in eight fractions over 5 days and the moulds were constructed such that the full thickness of the disease, as determined by the ultrasound measurement, would lie within the 80% isodose surface. One case was treated with a sandwich mould and in this case the dose was reduced to 42.5 Gy. The treatment machine was a high dose rate microselectron, which contains a single stepping iridium source. RESULTS: The radiation reactions were of moderate severity, but were limited to the high dose volume. In all cases there was complete tumour resolution and rapid healing occurred leaving a barely perceptible scar. There were no recurrences over a minimum follow-up time of 18 months and there were no late radiation complications in this period. CONCLUSIONS: The treatment of superficial carcinoma of the pinna by means of HDR moulds is a safe and reliable technique. In this small series of patients there was total tumour control with excellent cosmesis.
    Citation
    Fractionated high dose rate brachytherapy moulds--a precise treatment for carcinoma of the pinna. 1998, 48 (3):277-81 Radiother Oncol
    Journal
    Radiotherapy and Oncology
    URI
    http://hdl.handle.net/10541/92050
    PubMed ID
    9925247
    Type
    Article
    Language
    en
    ISSN
    0167-8140
    Collections
    All Christie Publications
    All Paterson Institute for Cancer Research

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