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An infected urachal cyst is an uncommon finding in adults. We report the first case of a sigmoid–urachal–cutaneous fistula that resulted from rupture of an infected urachal cyst in an adult male. Definitive management consisted of resection of the urachus with a bladder cuff, along with removal of the affected bowel segments and bowel anastomosis.
Percutaneous nephrolithotomy (PCNL) is the treatment of choice for large renal calculi. The most widely used access sheath for PCNL involves two steps including placement of a high-pressure balloon catheter (HPBC) followed by advancement of a sheath over the balloon. A novel PCNL balloon/sheath combination (NSS) has been developed that allows for both dilation and sheath placement in a single step...
Fibroepithelial polyps of the ureter are rare benign mesothelial tumors. Most polyps are small; however, very rare large polyps have also been reported. Currently, most investigators encourage endoscopic management in these patients. Nevertheless, endoscopic resection can be difficult in patients with a long or large polypoid lesion. We describe our experience and laparoscopic technique for treatment...
A novel 1-step percutaneous access sheath NS has been developed that allows the insertion of a dilating balloon and renal access sheath in a single step. We present the initial human experience with this sheath. We performed a retrospective chart and database review of the initial 30 consecutive patients undergoing percutaneous nephrostolithotomy using the NS. Data collected included patient demographics,...
Cyclins are prime cell-cycle regulators central to the control of cell proliferation in eukaryotic cells. The formation of cyclin/cyclin-dependent kinases (CDK) complexes activates the kinases and initiates a cascade of events, which directs cells through the cell cycle. CDK inhibitors (CDKIs) such as p27kip1 inhibit cyclin-CDK complexes and function as negative regulators of the cell cycle. Previous...
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