期刊
BMJ CASE REPORTS
卷 16, 期 7, 页码 -出版社
BMJ PUBLISHING GROUP
DOI: 10.1136/bcr-2022-252747
关键词
Pathology; Prostate Cancer; Radiotherapy
A man in his 70s, previously diagnosed with prostate adenocarcinoma, received radiotherapy 11 years ago. He developed urinary symptoms 10 years later, and a bladder neck tumor was found. Pathology revealed colorectal adenocarcinoma. Despite unremarkable colonoscopy, imaging showed bladder and prostate involvement. The patient refused surgery and underwent chemoradiation. Reirradiation was performed on a recurrent lymph node, with a positive response.
A man in his 70s previously diagnosed with an adenocarcinoma of the prostate, received external beam radiation therapy (EBRT) and brachytherapy 11 years ago. Ten years later, he developed urinary symptoms and a cystoscopy identified a bladder neck tumour. A transurethral resection of a bladder tumour was performed, and pathology revealed a high-grade adenocarcinoma consistent with a colorectal primary. A colonoscopy was unremarkable, and imaging studies showed tumour involving the bladder and prostate. Tumour markers and a CARIS genomic prevalence score also favoured a colorectal cancer primary.The patient refused surgery and underwent chemoradiation with a combination of EBRT and brachytherapy with concurrent capecitabine. Imaging studies obtained 6 months after reirradiation revealed an enlarged left-sided mesorectal lymph node concerning for disease recurrence. The lymph node was treated with Stereotactic Body Radiation Therapy and his post-treatment imaging revealed a response to treatment with no other evidence of disease.
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