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| | Types of Ureter Disorders, Mayo Clinic in Rochester, Minn. (Site not responding. Last check: 2007-11-06) |
 | | Rather than having one ureter tube that drains from the kidney to the bladder, a second, or duplicate, ureter forms on the same kidney. |
 | | When the ureter tube is too narrow and does not allow for the normal flow of urine, a ureterocele (a tiny hernia) will develop, usually in the section of the ureter closest to the bladder. |
 | | In this rare condition the ureter, rather than connecting directly from the kidney to the bladder, twists abnormally and blocks the flow of urine from the kidney to the bladder. |
| www.mayoclinic.org /ureterdisorders-rst/types.html (540 words) |
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