title: Phenotypic findings of Cowden syndrome and Bannayan-Zonana syndrome in a family associated with a single germline mutation in PTEN.
abstract: Cowden syndrome (CS) and Bannayan-Zonana syndrome (BZS) are two hamartoma syndromes with distinct phenotypic features. Although partial clinical overlap exists between CS and BZS, they are considered to be separate entities. PTEN has been identified as the susceptibility gene for both disorders, suggesting allelism. We have identified a germline mutation, R335X, in PTEN in a family consisting of two female members with the phenotypic findings of CS and two male members with the phenotypic findings of BZS. To our knowledge, this is the first report that shows the presence of separate subjects with CS and with BZS in a single family associated with a single germline PTEN mutation.
authors.affiliation: Department of Dermatology, Columbia Presbyterian Hospital, Columbia University, College of Physicians and Surgeons, New York, New York 10032, USA.
authors.forename: J T
authors.initials: JT
authors.lastname: Celebi
authors.forename: H C
authors.initials: HC
authors.lastname: Tsou
authors.forename: F F
authors.initials: FF
authors.lastname: Chen
authors.forename: H
authors.initials: H
authors.lastname: Zhang
authors.forename: X L
authors.initials: XL
authors.lastname: Ping
authors.forename: M G
authors.initials: MG
authors.lastname: Lebwohl
authors.forename: J
authors.initials: J
authors.lastname: Kezis
authors.forename: M
authors.initials: M
authors.lastname: Peacocke
mesh_terms: D000328:Adult; D002648:Child; D019465:Craniofacial Abnormalities / Q000235:genetics / Q000473:pathology*; D005260:Female; D018095:Germ-Line Mutation; D006223:Hamartoma Syndrome, Multiple / Q000235:genetics / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D051059:PTEN Phosphohydrolase; D010375:Pedigree; D010641:Phenotype; D010744:Phosphoric Monoester Hydrolases / Q000235:genetics*; D017422:Sequence Analysis, DNA; D013577:Syndrome; D025521:Tumor Suppressor Proteins
chemical_list: D025521:Tumor Suppressor Proteins; D010744:Phosphoric Monoester Hydrolases; D051059:PTEN Phosphohydrolase; C494929:PTEN protein, human