ESTRO 2025 - Abstract Book

S305

Brachytherapy – Head & neck, skin, eye

ESTRO 2025

Figure 2. Hand mould before attaching Freiburg flap.

Results: We have successfully treated a total of 14 courses of treatments with this novel mould design in 2023-2024. For an anatomical breakdown of treatments, see Table 1. Table 1. Number of treatment courses based on anatomy. Anatomy Number of patients Hand 9 Arm 3 Finger 2 Total 14 The treatment team report that it is easier to position the mould, increased reproducibility, better skin contact throughout treatment, is easier to remove in the case of an emergency, and less patient complaints about discomfort. This mould design allows for improved dosimetric coverage when the CTV wraps around the anatomy and over joints. Conclusion: The novel indexed thermoplastic skin mould design is now standardly used in our hospital to treat extensive NMSC with or without AK on extremities. We presented a novel skin mould design that is easier to position, better skin contact, and improved patient comfort. References: [1] Australian Institute of Health and Welfare. Non-melanoma skin cancer: general practice consultations, hospitalisation and mortality, https://www.aihw.gov.au/reports/cancer/non-melanoma-skin-cancer/summary; 2008 [accessed 12 November 2024]. [2] Perera E, Gnaneswaran N, Staines C, Win AK, Sinclair R. Non-melanoma skin cancer incidence. Australas J Dermatol 2015;56:258-267. https://doi.org/10.1111/ajd.12282. [3] George CD, Lee T, Hollestein LM, Asgari MM, Nijsten T. Global epidemiology of actinic keratosis in the general population: a systematic review and meta-analysis. Br J Dermatol 2024;190(4):465–476. https://doi.org/10.1093/bjd/ljad371. Keywords: surface, extremities, extensive