The XXXXY sex chromosome abnormality.

1 February 1966

journal article
research article
Published by BMJ in Archives of Disease in Childhood

Vol. 41 (215) , 82-86
https://doi.org/10.1136/adc.41.215.82

Abstract

A 14-yr. old phenotypical male with small genitalia, long slender extremities, prognathism, and clubbed large toes is described. The buccal mucosa cells showed 1, 2, and 3 sex chromatin bodies, and the chromosomal count was 49, with the karyotype XXXXY and without evidence of mosaicism. The clinical symptomatology and genesis of this sex chromosome anomaly are discussed.

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