Cystoscopy is indicated in the evaluation of extraglomerular hematuria under which circumstance?

Cystoscopy is indicated in the evaluation of extraglomerular hematuria under which circumstance?

• A. Age over 50 with cancer risk factors
• B. Any patient with hematuria
• C. Only if urine cytology is positive
• D. If dipstick is negative

Answer: (A)

Extraglomerular hematuria means the bleeding originates from the urinary tract itself, so the goal is to find a urothelial or lower-tract source. Cystoscopy allows direct visualization of the bladder and urethra and enables biopsy if needed, making it the test of choice to detect bladder cancers, stones, or inflammatory lesions that could cause bleeding. The strongest reason to perform cystoscopy in this scenario is age over 50 with cancer risk factors. As people age and accumulate exposures such as tobacco or other carcinogens, the risk of urothelial malignancy rises. In this group, evaluating for bladder cancer with cystoscopy is appropriate even if other tests like urine cytology are not clearly positive, because cytology can miss low-grade tumors and early lesions. Rationale against the other options: not every patient with any hematuria requires cystoscopy, since many low-risk cases can be followed with less invasive workup; urine cytology positivity does not guarantee that cystoscopy is unnecessary, and a negative dipstick does not exclude lower-tract sources of bleeding.

Extraglomerular hematuria means the bleeding originates from the urinary tract itself, so the goal is to find a urothelial or lower-tract source. Cystoscopy allows direct visualization of the bladder and urethra and enables biopsy if needed, making it the test of choice to detect bladder cancers, stones, or inflammatory lesions that could cause bleeding.

The strongest reason to perform cystoscopy in this scenario is age over 50 with cancer risk factors. As people age and accumulate exposures such as tobacco or other carcinogens, the risk of urothelial malignancy rises. In this group, evaluating for bladder cancer with cystoscopy is appropriate even if other tests like urine cytology are not clearly positive, because cytology can miss low-grade tumors and early lesions.

Rationale against the other options: not every patient with any hematuria requires cystoscopy, since many low-risk cases can be followed with less invasive workup; urine cytology positivity does not guarantee that cystoscopy is unnecessary, and a negative dipstick does not exclude lower-tract sources of bleeding.