New-Onset Continuous Urinary Incontinence After Ectopic Ureteral Stone Surgery with Pre-existing Stress Urinary Incontinence: A Case Report
This case report highlights the diagnostic challenge of identifying an ectopic ureter in adult patients with coexisting stress urinary incontinence, demonstrating that a shift from intermittent to continuous urinary leakage warrants a comprehensive reassessment involving imaging and cystoscopy to prevent missed diagnoses.
Original paper licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). This is an AI-generated explanation of the paper below. It is not written or endorsed by the authors. For technical accuracy, refer to the original paper. Read full disclaimer
The human body has a sophisticated plumbing system designed to keep us dry and comfortable. The kidneys filter waste from the blood to create urine, which travels down two tubes called ureters to a storage sac known as the bladder. Normally, both tubes connect to the bladder at a specific spot, and a muscular valve at the bottom of the bladder acts like a gatekeeper, holding the urine in until we are ready to release it. Sometimes, however, this system develops a variation where a tube connects in the wrong place, bypassing the gatekeeper entirely. This condition, called an ectopic ureter, can cause urine to leak out continuously because it flows directly into the urethra or another area without passing through the normal control mechanism. While this is often diagnosed in children, it can occasionally hide in adults, especially if the person has another common reason for leaking, such as stress incontinence, where physical pressure from coughing or exercise forces urine out. When two different causes of leakage exist at the same time, doctors face a difficult puzzle: determining which one is responsible for the symptoms, or if both are playing a role.
A team of surgeons at the Second Affiliated Hospital of Chongqing Medical University recently shared the story of a sixty-six-year-old woman who presented exactly this kind of diagnostic challenge. For two years, she had experienced intermittent urine leakage that happened only when she coughed, walked, or increased pressure in her abdomen. This pattern, combined with medical tests showing her bladder muscles were not closing tightly enough, pointed clearly to stress urinary incontinence. However, her situation took a sharp turn when she developed a fever and pain in her right side. Scans revealed she had a duplicated system on her right side, meaning she had two ureters instead of one, and the upper one ended in the wrong place. Furthermore, a stone roughly the size of a large grape, measuring eleven by eight millimeters, was stuck near the opening of this misplaced tube, causing an infection.
The medical team first addressed the stone using a scope passed through the urethra to break it up and remove it. This relieved her pain and fever, but the story of her leakage did not end there. Following the stone removal, she underwent a procedure to tighten the support for her bladder, which initially seemed to help with the cough-related leaks. Yet, just one month later, the nature of her leakage changed completely. Instead of leaking only when she coughed or moved, she began to lose urine continuously, regardless of her position or activity. This shift in symptoms was the critical clue. When doctors tested her again, her bladder function appeared normal, and a dye test showed that the leaking fluid was not coming from the bladder itself. This meant the source of the constant wetness was somewhere else entirely.
The doctors realized that the stone had been blocking the flow from the misplaced tube, and once it was removed, that tube began draining freely. Because the tube connected to the urethra below the normal control valve, the urine flowed out nonstop, masking the original stress incontinence. To confirm this, the surgeons performed a minimally invasive surgery to look inside her abdomen. They found the misplaced upper tube and carefully reconnected it to the bladder, placing it where it belonged so the bladder's natural gatekeeper could do its job. After this reconstruction, the continuous leakage stopped immediately, and the patient remained dry.
This case highlights how a change in the pattern of symptoms can reveal a hidden anatomical problem. The woman did have stress incontinence, which was real and treated, but the continuous leakage was caused by the ectopic ureter that had been overlooked. The doctors learned that when a patient with a known duplicated system develops a new type of leakage that does not match their previous diagnosis, they must look beyond the bladder to the plumbing above it. By combining a careful look at the symptoms, tests of bladder function, and imaging of the internal structures, the team was able to solve a complex medical mystery and restore the patient's quality of life.
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