Volume 10, Number 3Review ArticlesHypercalcemic States Associated With NephrolithiasisManagement UpdateDean G AssimosCorey PassmanBrandon L CravenAlthough kidney stone formation due to hypercalcemic states is rare, it is important for urologists to understand the pathophysiology of these conditions, methods of diagnosis, and treatments. This should foster a quicker diagnosis and institution of appropriate therapy. The latter typically leads to the attenuation of kidney stone activity. Moreover, these patients have a systemic disease, and therapy has other health benefits. [Rev Urol. 2008;10(3):218-226]NephrolithiasisVitamin DSarcoidosisHypercalcemiaCalcium homeostasisCalcitriolParathyroid hormoneHyperparathyroidism
Volume 12, Number 1Case ReviewTransitional Cell Carcinoma Within a Calyceal Diverticulum Associated With Stone DiseaseCase ReviewDean G AssimosJack M ZuckermanCorey PassmanWe report a case of transitional cell carcinoma (TCC) discovered within a calyceal diverticulum at the time of percutaneous nephrolithotomy. The stones and tumor were endoscopically removed and the diverticular cavity fulgurated. Pathologic analysis demonstrated low-grade TCC. A subsequent laparoscopic radical nephroureterectomy was performed and high-grade TCC invading the parenchyma was found. This case demonstrates the potential for TCC to develop in stone-containing calyceal diverticula and also the potential for coexistence of different grades of TCC within the involved renal unit.[Rev Urol. 2010;12(1):52-55 doi: 10.3909/riu0446]Percutaneous nephrolithotomyUrinary tract infectionTransitional cell carcinomaUrolithiasisCalyceal diverticulumStone