| umls-concept:C1333600 | skos:definition | NCI: Cancer that occurs in families more often than would be expected by chance. These cancers often occur at an early age, and may indicate the presence of a gene mutation that increases the risk of cancer. They may also be a sign of shared environmental or lifestyle factors.,NCI: Cancer aggregating among blood relatives. Does not necessarily imply a genetic inheritance. | lld:umls |
