RT Journal Article SR Electronic T1 Familial translocation t(9;16). JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 525 OP 528 DO 10.1136/jmg.26.8.525 VO 26 IS 8 A1 Dowman, C A1 Lockwood, D A1 Allanson, J YR 1989 UL http://jmg.bmj.com/content/26/8/525.abstract AB We report a female with a deletion of 9p and concomitant duplication of 16q [46,XX,-9,+der(9),t(9;16)(p24;q13)]. Parental chromosome analysis showed a balanced maternal translocation [46,XX,t(9;16)(p24;q13)]. Three other cases of translocations involving chromosomes 9 and 16 have been reported, one of them with identical breakpoints. A review of published reports of deletion 9p and duplication 16q is presented, and a comparison is made with previously described cases.