An interstitial deletion of the long arm of chromosome 13.

A case of an interstitial deletion of chromosome 13, identified as 46,XY,del(13)(q22q31), is reported in a child with psychomotor retardation, prominent low-set ears, epicanthus, hypertelorism, broad nasal bridge, hypoplastic fifth fingers and abnormal dermatoglyphics. This patient is compared to others in the literature with a similar deletion.