Postoperative Radiotherapy for pT1- and pT2-Classified Squamous Cell Carcinoma of the External Auditory Canal.

IF 4.5 2区医学 Q1 ONCOLOGY

Cancers Pub Date : 2024-11-30 DOI:10.3390/cancers16234026

Cindy H Nabuurs, Wietske Kievit, Charles René Reinier Leemans, Conrad F G M Smit, Michiel W M van den Brekel, Robert J Pauw, Bernard F A M van der Laan, Jeroen C Jansen, Martin Lacko, Weibel W Braunius, Chunfu Dai, Xunbei Shi, Giovanni Danesi, Jan Bouček, Daniele Borsetto, Shavran Gowrishankar, Romain Kania, Clément Jourdaine, Thijs T G Jansen, Jolanda Derks, Tim Dijkema, Robert P Takes, Henricus Dirk P M Kunst

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引用次数: 0

Abstract

Background: There is no consensus regarding the indication for postoperative radiotherapy (PORT) for T1- and T2-classified squamous cell carcinoma (SCC) of the external auditory canal (EAC) even with negative surgical margins. This study aimed to evaluate whether PORT provides additional benefits for these cases.

Methods: We collected retrospective data from fourteen international hospitals, including resected pT1- and pT2-classified EAC SCC with negative surgical margins.

Results: A total of 112 early-stage radically resected EAC SCC were included, with 48 patients receiving PORT. The 5-year DFS of T1- and T2-classified EAC SCC treated with PORT was not statistically significantly different (92.9% and 76.9%, respectively) compared to the group treated without PORT (100% and 90.9%, respectively; p-values of 0.999 and 0.526, respectively). EAC SCC treated with PORT more frequently exhibited perineural and angioinvasive growth. Eighteen patients experienced side effects related to radiotherapy, of which one patient developed osteoradionecrosis.

Conclusions: Our study suggests that PORT for early-stage radically resected EAC SCC should only be considered in selected cases with perineural, infiltrative growth or angioinvasive growth, and with a close margin. This approach helps mitigate the negative impact on quality of life and the risk of side effects associated with radiotherapy.

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外耳道鳞状细胞癌 pT1 和 pT2 级术后放疗。

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来源期刊

Cancers Medicine-Oncology

CiteScore

8.00

自引率

9.60%

发文量

5371

审稿时长

18.07 days

期刊介绍： Cancers (ISSN 2072-6694) is an international, peer-reviewed open access journal on oncology. It publishes reviews, regular research papers and short communications. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced.