Ureterosigmoidostomy can complicate as –
**Core Concept**
Ureterosigmoidostomy is a surgical procedure where the ureters are implanted into the sigmoid colon to manage urinary diversion in patients with bladder cancer or other lower urinary tract disorders. This procedure can lead to complications due to the abnormal interaction between the urinary and intestinal systems.
**Why the Correct Answer is Right**
The correct complication of ureterosigmoidostomy is the development of secondary malignancies, specifically colorectal cancer, in the sigmoid colon segment where the ureters are implanted. This is due to the exposure of the colonic epithelium to the carcinogenic effects of urine, which contains various mutagenic substances. The chronic irritation and inflammation caused by the urine also contribute to the malignant transformation of the colonic epithelial cells. The risk of secondary malignancy is a well-documented complication of ureterosigmoidostomy, and patients undergoing this procedure require close long-term follow-up.
**Why Each Wrong Option is Incorrect**
**Option A:** Electrolyte imbalance is a potential complication of ureterosigmoidostomy, but it is not the most significant or well-documented complication.
**Option B:** Urinary tract infections are common after ureterosigmoidostomy, but they are not typically a long-term complication of the procedure.
**Option C:** Chronic kidney disease can be a consequence of ureterosigmoidostomy, but it is not a direct complication of the procedure.
**Clinical Pearl / High-Yield Fact**
To remember the risk of secondary malignancies after ureterosigmoidostomy, recall the mnemonic "Carcinoma Colon Cancer": Chronic urine exposure leads to Colonic epithelial Cancer.
**Correct Answer:** A.