title: Germline p53 mutation in a Micronesian child with adrenocortical carcinoma and subsequent osteosarcoma.
abstract: In 1990, an 18-month-old Micronesian girl was initially diagnosed with a right adrenocortical carcinoma. More than a decade later (2003), she was diagnosed with metastatic osteosarcoma with the primary in her right proximal fibula. Given this child's remarkable history of malignancy, she underwent testing for a genetic mutation that is associated with increased cancer formation. One such cancer syndrome is called Li-Fraumeni syndrome where approximately 70% of patients carry a genetic mutation in the p53 tumor suppressor gene. Patients with LFS are at risk for developing cancers of the breast, soft tissues, brain, bone, adrenal gland, and blood cells. Mutational analysis of our patient did reveal the presence of a germline mutation of the p53 tumor suppressor gene. She was found to have a base pair change (A-->C) at nucleotide 394 resulting in a lysine to glutamine amino acid change at codon 132 (K132Q), which remarkably has never been described in association with either adrenocortical carcinoma or osteosarcoma.
authors.affiliation: Department of Pediatrics, Tripler Army Medical Center, 1 Jarrett White Road, Tripler AMC, HI 96859-5000, USA. heather.delaney@amedd.army.mil
authors.forename: Heather M
authors.initials: HM
authors.lastname: Delaney
authors.forename: Ronald D
authors.initials: RD
authors.lastname: Prauner
authors.forename: Donald A
authors.initials: DA
authors.lastname: Person
mesh_terms: D000306:Adrenal Cortex Neoplasms / Q000235:genetics* / Q000473:pathology; D018268:Adrenocortical Carcinoma / Q000235:genetics* / Q000473:pathology; D001859:Bone Neoplasms / Q000000981:diagnostic imaging / Q000235:genetics* / Q000473:pathology; D003062:Codon; D005260:Female; D018095:Germ-Line Mutation / Q000235:genetics*; D006801:Humans; D007223:Infant; D008279:Magnetic Resonance Imaging; D008849:Micronesia; D016609:Neoplasms, Second Primary / Q000000981:diagnostic imaging / Q000235:genetics* / Q000473:pathology; D012516:Osteosarcoma / Q000000981:diagnostic imaging / Q000235:genetics* / Q000473:pathology; D011859:Radiography; D016159:Tumor Suppressor Protein p53 / Q000235:genetics*
chemical_list: D003062:Codon; D016159:Tumor Suppressor Protein p53