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Actas Urológicas Españolas

Print version ISSN 0210-4806


SANZ-ORTEGA, Julián et al. Hereditary renal cancer. Actas Urol Esp [online]. 2009, vol.33, n.2, pp.127-133. ISSN 0210-4806.

Kidney cancer is the tenth most common cause of cancer death. There are a growing number of genes known to be associated with an increased risk of specific types of kidney cancer. People with Von Hippel-Lindau syndrome have about a 40% risk of developing multiple bilateral clear cell kidney cancers. They can also develop retinal and brain hemangioblastoma, kidneys or pancreas cysts, pheochromocytoma and endolymphatic sac tumor. Four phenotypes with different renal cancer and pheocromocitoma risk have been described depending on the germline mutation. Hereditary papillary renal cell carcinoma syndrome has type 1 papillary renal cell carcinomas associated with proto-oncogene c-MET germline mutations. Birt-Hogg-Dubé syndrome has FLCN gene mutations associated with fibrofolliculomas, lung cysts with a high risk for spontaneous pneumothorax, and a 15% to 30% risk of kidney cancer (most classified as chromophobe carcinoma, oncocytoma or oncocytic hybrid, but clear cell and papillary kidney cancers have also been reported). Histopathological findings such as oncocytosis and oncocytic hybrids are very unusual outside the syndrome. Hereditary leiomyomatosis and renal cell cancer syndrome shows mutations of Fumarate hydratase gene and cutaneous leiomyomata in 76% of affected individuals, uterine leiomyomata in 100% of females, and unilateral, solitary, and aggressive papillary renal cancer in 10 to 16% of patients. A specific histopathological change is eosinophilic prominent nucleoli with a perinucleolar halo. Tuberous sclerosis complex is one of the most prevalent (1/5.800) hereditary syndromes where renal disease is the second leading cause of death, associated with angiomyolipomas (70%), renal cysts, oncocytomas or clear cell cancer.

Keywords : Renal cancer; Von-Hippel-Lindau; Germline mutations; HLRCC; Leiomyomas.

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