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Familial multiple cutaneous and uterine leiomyomas associated with papillary renal cell cancer.

Abstract：

:Multiple cutaneous and uterine leiomyomas is an autosomal dominant condition that results in benign smooth muscle tumours of the skin and, in females, uterine fibroids. This syndrome overlaps with hereditary leiomyomatosis and renal cell cancer syndrome in which affected individuals may develop the rare type II papillary renal cell cancer, in addition to skin leiomyomas. Recently, heterozygous mutations in the gene encoding fumarate hydratase have been found to underlie both conditions. Fumarate hydratase is an enzyme that catalyses the conversion of fumarate to malate in the Kreb's cycle and may also function as a tumour suppressor gene. We report a family with multiple leiomyomas, uterine fibroids and papillary renal cell cancer. The proband is a 77-year-old Polish woman who developed multiple cutaneous leiomyomas on her right upper arm in her thirties and subsequently underwent a hysterectomy for uterine fibroids in her forties. She has four offspring: her eldest daughter also has skin and uterine leiomyomas with a similar onset; her son has multiple skin leiomyomas and in addition was diagnosed with metastatic papillary renal cell cancer at the age of 50 years; the two youngest daughters are unaffected. DNA sequencing in all the affected individuals disclosed a heterozygous G-->C substitution at nucleotide 173 of the fumarate hydratase gene, that converts an arginine residue (CGA) to proline (CCA). This missense mutation has not been reported previously and is designated R58P. Interestingly, the clinically asymptomatic 20-year-old son of the individual with renal cancer was also found to be heterozygous for R58P. It is likely that he will develop skin leiomyomas in the future but the risk of renal cancer is difficult to predict. Nevertheless, detection of this mutation has important implications for screening and genetic counselling in this and other family members.

journal_name

Clin Exp Dermatol

journal_title

Clinical and experimental dermatology

authors

Chan I,Wong T,Martinez-Mir A,Christiano AM,McGrath JA

doi

10.1111/j.1365-2230.2004.01675.x

keywords:

subject

Has Abstract

pub_date

2005-01-01 00:00:00

pages

75-8

issue

eissn

0307-6938

issn

1365-2230

pii

CED1675

journal_volume

pub_type

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Familial multiple cutaneous and uterine leiomyomas associated with papillary renal cell cancer.