© 1991 Oxford University Press
research-article |
Are Bilateral Tumours Hereditary?
*Programme on Viral and Hereditary Factors, Unit of Mechanisms of Carcinogenesis, International Agency for Research on Cancer 150 Cours Albert Thomas, Lyon 69372, France
**Present address: McGill University, The Montreal General Hospital, Research Institute 21650 Cedar Avenue, Room Livingston 10803, Montreal PQ H3G 1A4, Canada.
Early observations regarding the age of onset, the family history and the clinical pattern of presentation of Wilms' tumour patients have been used to support the two-hit model of carcinogenesis, and to infer the hereditary nature of the bilateral form of the disease. Recent observations drawn from follow-up studies of offspring of unilaterally affected patients cast serious doubts upon the claim that a bilateral tumour implies the presence of an inherited predisposing mutation.
Revised 1 August 1990