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. 1999 May;36(5):360–364.

Phenotypic findings of Cowden syndrome and Bannayan-Zonana syndrome in a family associated with a single germline mutation in PTEN

J T Celebi 1, H Tsou 1, F F Chen 1, H Zhang 1, X L Ping 1, M Lebwohl 1, J Kezis 1, M Peacocke 1
PMCID: PMC1734369  PMID: 10353779

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.


Keywords: Cowden syndrome; Bannayan-Zonana syndrome; PTEN

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Selected References

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