Clinical variability of partial duplication 1q: A clinical report and literature review

Abstract
A female baby with multiple congenital malformations was born to a father previously known as a carrier of reciprocal translocation, t (l;18) (q25;pll). Her chromosome constitution was 46,XX,−18,derl8,t(l;l8)(q25;pll)pat, namely, partial duplication Iq25→qter. The main manifestations were: macrocephaly, hirsutism, camptodactyly, eye defects, lymphedema, and duodenal atresia. This patient illustrates the phenotype variability expected from such a large duplication of chromosome 1.