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Colonic carcinoma after ureterosigmoidostomy
1Department of Colorectal Surgery, Wycombe Hospital, Queen Alexandra Road, High Wycombe, Buckinghamshire HP11 2TT, UK. andyhuang@talk21.com
Postgraduate Medical Journal
|August 30, 2000
Summary
Urinary carcinogens can cause colon cancer years after ureterosigmoidostomy. Even after removing the urinary diversion, a patient developed colon cancer at the prior surgical site, highlighting the need for long-term patient monitoring.
Area of Science:
- Urology
- Oncology
- Gastroenterology
Background:
- Ureterosigmoidostomy is a surgical procedure for urinary diversion.
- Exposure to urinary carcinogens is a known risk factor for malignant transformation in the colon.
Observation:
- A case of colon carcinoma developing at the site of a previous ureterosigmoidostomy anastomosis is presented.
- The carcinoma developed despite the early removal of the ureterosigmoidostomy, ceasing urine flow to the colon.
Findings:
- Urinary carcinogens can promote late malignant transformation of the colon.
- The latency period for cancer development can be significant, even after the cessation of exposure.
Implications:
- Long-term surveillance is crucial for patients who have undergone ureterosigmoidostomy.
- Proactive monitoring can help detect and manage iatrogenic cancers early.