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A 48,XYYY Male: A Somatic and Psychiatric Description
  1. Henry Hunter,
  2. Roger Quaife*
  1. Balderton Hospital, Newark, Nottinghamshire


    Aspects of the physical, dermatological, intellectual and personality characteristics of an adult male of 48,XYYY genotype are described. With the exception of sterility no gross physical or dermatographical abnormalities were found. Diminished intellectual functioning and abnormal personality traits similar to those seen in males with other sex chromosome abnormalities were observed. Some possible origins of this aneuploidy are discussed.

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    • * Present address: Area Medical Genetics Service, Department of Human Morphology, University of Nottingham Medical School.