title: De novo CDH1 mutation in a family presenting with early-onset diffuse gastric cancer.
abstract: In this report, we describe the first concluded case of a de novo germline mutation in CDH1 in a hereditary diffuse gastric cancer (HDGC) kindred. The incident case was a woman with a personal history of Hodgkin's lymphoma and diffuse gastric cancer, who was then confirmed to have a CDH1 mutation (c.1792 C>T (R598X)). The patient's mother was found to have the same CDH1 germline mutation; however, neither maternal grandparent was found to carry the mutation, thus leading to a conclusion that the proband's mother's mutation is of de novo origin. This case highlights the importance of recognition of the HDGC syndrome and of testing for CDH1 germline mutations in young individuals with diffuse gastric cancer without a family history of the disease.
authors.affiliation: Gastrointestinal Oncology, Division of Hematology and Medical Oncology, Weill Cornell Medical College, New York Hospital, New York, NY 10021, USA. mas9313@med.cornell.edu
authors.forename: M A
authors.initials: MA
authors.lastname: Shah
authors.forename: E
authors.initials: E
authors.lastname: Salo-Mullen
authors.forename: Z
authors.initials: Z
authors.lastname: Stadler
authors.forename: J M
authors.initials: JM
authors.lastname: Ruggeri
authors.forename: M
authors.initials: M
authors.lastname: Mirander
authors.forename: Y
authors.initials: Y
authors.lastname: Pristyazhnyuk
authors.forename: L
authors.initials: L
authors.lastname: Zhang
mesh_terms: D000328:Adult; D017668:Age of Onset; D000368:Aged; D015703:Antigens, CD; D015820:Cadherins / Q000235:genetics*; D005190:Family; D005260:Female; D018095:Germ-Line Mutation; D006689:Hodgkin Disease / Q000235:genetics; D006801:Humans; D008297:Male; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000235:genetics; D013274:Stomach Neoplasms / Q000235:genetics*
chemical_list: D015703:Antigens, CD; C513384:CDH1 protein, human; D015820:Cadherins