title: Proximal trisomy 13. A family with balanced reciprocal translocation t(8;13) in seven members and Robertsonian translocation t(13;14) in three members.
abstract: The cytogenetic analysis of a 12-year-old retarded boy revealed a partial proximal trisomy 13, resulting from a maternal translocation t(8;13). A familial study shows this translocation in seven persons and also a Robertsonian translocation t(13q;14q) in three sons of a t(8;13) father. A review of partial proximal trisomies 13 shows a variability in the phenotypic expression.
mesh_terms: D002648:Child; D002901:Chromosomes, Human, 13-15 / Q000648:ultrastructure*; D002906:Chromosomes, Human, 6-12 and X / Q000648:ultrastructure; D004827:Epilepsy / Q000235:genetics; D006330:Heart Defects, Congenital / Q000235:genetics; D006801:Humans; D008607:Intellectual Disability / Q000235:genetics; D008297:Male; D010375:Pedigree; D013577:Syndrome; D014178:Translocation, Genetic; D014314:Trisomy