Portal de Periódicos da CAPES

The XYY syndrome

1969; Elsevier BV; Volume: 47; Issue: 5 Linguagem: Inglês

10.1016/0002-9343(69)90173-9

1555-7162

Charles E. Parker, John Melnyk, Charles H. Fish,

Genetic Associations and Epidemiology

The XYY syndrome is of particular interest since the extra Y chromosome seems to be related to personality traits and criminal behavior. A new case of XYY syndrome is presented and discussed with relation to the present knowledge of the syndrome. Extensive laboratory data are presented, but no diagnostic abnormalities were found. Typical karyotypes, both meiotic and mitotic, are shown. Meiotic studies indicate that the extra Y chromosome is not transmitted to the progeny. Personality type and height remain the most outstanding features of the syndrome. There appear to be no diagnostic dermatoglyphic or histologic patterns. Although one can suspect the syndrome clinically, a karyotype is necessary to prove the diagnosis.