Abnormality of chromosome 16 and its phenotypic expression

Abstract
An abnormality of chromosome 16 in which there is extra genetic material present on the short arm (46,XY,16p+) was identified. This chromosomal aberration was associated in this child with multiple congenital anomalies, including mid-facial hypoplasia, arthrogryposis and mental retardation. On the basis of the cytogenetic appearance and the phenotype of the patient, this may represent a partial trisomy 16. Unlike most abnormalities of chromosome 16, this syndrome was compatible with life.