A Case study of the radiation therapy treatment of a transitional cell carcinoma of the distal urethra
2020
Urethral carcinoma is a rare urological cancer, accounting for only 1% of malignancies in Australia. The most common histology is transitional cell carcinoma (TCC). The majority of these cancers are treated with surgery. The main purpose of this case study is to describe a novel radiation treatment technique for treatment of this uncommon cancer. This report details organ-preserving treatment for a distal penile urethral cancer using definitive radiation therapy (RT). In May 2016 a 69-year-old male presented to Crown Princess Mary Cancer Centre (CPMCC) with a small TCC of the distal urethra. The patient was offered numerous treatment options, both radical and organ-preserving approaches, and came to a final decision of a course of radiation therapy despite the lack of randomised evidence to guide treatment in this setting. A dose of 66 Gy in 33 fractions from parallel opposed lateral beams was prescribed to the distal penile urethra. This case required an unusual approach to patient set up to allow access for accurate treatment delivery and to maintain patient comfort. The patient tolerated the full course of radiation therapy with expected skin side effects. He has maintained adequate penile function and is currently free from disease at 33 months with ongoing clinical follow-up.
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