Li-Fraumeni syndrome (LFS) is a familial clustering of early onset tumors including sarcomas, breast cancers, brain tumors and adrenocortical carcinomas (ADR). Initially considered as a rare syndrome, LFS and its variants are increasingly recognized as one of the most frequent and diverse forms of predisposition to cancer. Most cases identified and characterized to date are associated with dominantly inherited germ line mutations in the tumor suppressor gene TP53 (p53). In a subset of non-p53 patients with LFS, CHEK2 has been identified as another predisposing locus. LFS is diagnosed on the basis of the confirmed clinical diagnostic criteria.
Human diseases in ICD-11 classification [BR:br08403]
Malignant neoplasms, except primary neoplasms of lymphoid, haematopoietic, central nervous system or related tissues
Malignant neoplasms, stated or presumed to be primary, of specified sites, except of lymphoid, haematopoietic, central nervous system or related tissues
Malignant mesenchymal neoplasms
2B51 Osteosarcoma, primary site
H00881 Li-Fraumeni syndrome