https://www.selleckchem.com/products/az191.html Management is conservative in majority of cases with percutaneous drainage and antibiotics, with surgery being reserved for hemodynamically unstable patients.Background Retrograde intrarenal surgery (RIRS) has emerged as a viable and safe option for renal stones less then 2 cm. Because of its high efficiency and relative safety, experienced endourologists have applied it to even larger stones. We present a case of arteriocaliceal fistula, which is a rare postoperative complication of RIRS. Case Presentation A 52-year-old man with a rich history of endourologic procedures and extracorporeal shockwave lithotripsy caused by inferior caliceal calculi was subjected to RIRS. This was complicated by transient intraoperative hemorrhage, followed by recurrent hematuria and clot retention several days postoperatively. Renal arteriography revealed the presence of an arteriocaliceal fistula. This was completely resolved with selective arterial embolization. Conclusion This case highlights that early detection and timely intervention are crucial to avoid serious consequences of post-RIRS hemorrhage resulting from arteriocaliceal fistula.Background The prostatic urethral lift (PUL) procedure is a novel therapeutic method to treat lower urinary tract symptoms (LUTS) caused by benign prostatic hyperplasia (BPH). Gross hematuria after this procedure has been reported to be mild and transient. This report highlights a case of refractory transfusion-dependent hematuria after the PUL procedure in addition to its management with selective prostatic arterial embolization (PAE). Case Presentation A 78-year-old Caucasian man with a history of myelodysplastic syndrome, thrombocytopenia, and intermittent urinary retention secondary to BPH underwent a PUL procedure. Before the procedure he received a platelet transfusion making his platelet count 58,000/μL. The day after the procedure he was admitted to a hospital for gross hematuria with clot r