XYY male

Dieter Meschede and Eberhard Nieschlag

in Oxford Textbook of Endocrinology and Diabetes

Second edition

Published on behalf of Oxford University Press

ISBN: 9780199235292
Published online July 2011 | e-ISBN: 9780199608232 | DOI:

Series: Oxford Textbooks

XYY male

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Men with a 47,XYY karyotype do not present with a well-defined clinical syndrome. The diagnosis relies entirely on the cytogenetic demonstration of two Y chromosomes, accompanying an otherwise normal set of chromosomes. Cases with 47,XYY/46,XY mosaicism are also subsumed under the XYY male category. The 48,XXYY karyotype is briefly discussed in Chapter 9.4.3.

Chapter.  1214 words. 

Subjects: Endocrinology and Diabetes

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