The Floating-Harbor syndrome: two affected siblings in a family.

In this report we describe two siblings with pre- and postnatal growth retardation and clinical signs and symptoms most compatible with the diagnosis of Floating-Harbor syndrome. The oldest sibling, a girl, died in the first year of life from recurrent infections. The younger sibling, a male, is now 16.

XYY syndrome and other Y chromosome polysomies. Mental status and psychosocial functioning.

In this report we review the data on 75 male patients with extra Y chromosome diagnosed in Leuven in the period 1968-1993 among 98,725 patients (males and females) referred for constitutional chromosomal analysis. Special attention was given to their mental performance and psychosocial functioning. 1.