Kidney Stone Treatment in Transplant Recipients: A Complex Challenge

For people with Type 1 diabetes and kidney failure, a simultaneous pancreas-kidney transplant (SPK) can be life-changing—replacing both organs at once. But like any transplanted organ, the new kidney can develop unexpected complications. One such complication is kidney stones, though this is rare.

A recent case described a man in his 40s with Type 1 diabetes who developed a large, complex kidney stone in his transplanted kidney five years after his SPK procedure. He noticed blood in his urine, which prompted imaging that revealed an 18 mm partial staghorn calculus—a large stone with branching extensions inside the kidney.

Removing kidney stones from a transplanted kidney is harder than removing them from a native kidney. The transplanted kidney is positioned differently in the body—typically in the lower abdomen rather than its original location. This altered anatomy means surgeons must navigate around blood vessels and other structures that are much closer than they would be in a native kidney.

The standard treatment for large, branching stones is percutaneous nephrolithotomy (PCNL)—a procedure where surgeons access the stone directly through the skin. In transplanted kidneys, however, this procedure requires careful planning and specialized expertise to avoid damaging surrounding structures.

In this case, the surgical team used fluoroscopic guidance—real-time X-ray imaging—to plan a safe path to reach the stone. Once they had positioned their instruments carefully, they fragmented the stone and removed all the pieces, completely clearing it from the kidney.

The case highlights an important lesson: when treating complications in transplanted organs, success depends on specialized access planning, image guidance, and teamwork among multiple specialists. This tailored approach helped preserve the function of both the patient's transplanted kidney and pancreas.

While kidney stones after transplant remain uncommon, this case shows that when they do occur, modern surgical techniques can manage them effectively. If you have received a pancreas-kidney transplant and develop symptoms like blood in your urine or flank pain, it's important to discuss them with your transplant team promptly.

Prompt evaluation and treatment can help protect the long-term health of your transplanted organs.

Source: BMJ case reports. Evidence type: PubMed indexed literature. Type1Cure is an information and intelligence hub, not a medical advice service. This article summarizes published research and does not provide diagnosis, treatment, or personal medical guidance. Always talk to your own care team before changing anything about your Type 1 diabetes management.