JOURNAL ARTICLE
REVIEW
Management of von Hippel-Lindau-associated kidney cancer.
Nature Clinical Practice. Urology 2005 May
Von Hippel-Lindau disease (VHL) is an autosomal-dominant inherited condition that predisposes patients to develop renal cysts and tumors, most commonly in the second to fourth decades of life. Renal cysts and tumors have historically been a major cause of disease-related morbidity and mortality, so urologists are often called on to manage patients with VHL. Knowledge of the extrarenal manifestations of VHL (hemangioblastomas of the central nervous system and retina, endolymphatic sac tumors, pancreatic cysts, epididymal and broad-ligament cysts, and pheochromocytomas) and integration of nonurologic specialties into management teams for VHL patients will help to achieve successful outcomes. Screening for renal manifestations of VHL, by regular imaging of the abdomen, begins late in the second decade of life. Because renal tumors in VHL can be multifocal and bilateral, management can be complex. Radical nephrectomy removes all tissue at risk for forming renal tumors; however, this necessitates renal replacement therapy. In an effort to control cancer effectively while preserving native renal function and minimizing intervention, some researchers have proposed an observational strategy. Patients are screened until the largest tumor reaches 3 cm in diameter, at which time operative intervention is recommended. Nephron-sparing surgery is undertaken, whenever technically feasible, with the goal of removing all tumors in that renal unit. The role of minimally invasive technologies is currently being evaluated in selected patients with VHL renal masses. Elucidation of molecular pathways associated with VHL renal tumors may facilitate development of effective medical treatments for these lesions in the future.
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