title: A new small supernumerary marker chromosome, generating mosaic pure trisomy 16q11.1-q12.1 in a healthy man.
abstract: Here we report on a healthy and fertile 30 years old man, who was carrier of a small supernumerary marker chromosome (sSMC). The application of molecular techniques such as fluorescence in situ hybridisation (FISH), microdissection and reverse painting, helped to characterize the sSMC which resulted to be derived from chromosome 16. In fact, the presence of euchromatin material from the long arm (16q) in the sSMC was demonstrated, and the karyotype can be written as mos 47, XY,+min(16)(:p11.1->q12.1:)[20]/46, XY [10].
authors.affiliation: Estudio Colaborativo Español de Malformaciones Congénitas (ECEMC) del Centro de Investigación sobre Anomalías Congénitas (CIAC), Instituto de Salud Carlos III, Ministerio de Sanidad y Consumo, Madrid, Spain. laura@isciii.es.
authors.forename: Laura
authors.initials: L
authors.lastname: Rodríguez
authors.forename: Tomas
authors.initials: T
authors.lastname: Liehr
authors.forename: María Luisa
authors.initials: ML
authors.lastname: Martínez-Fernández
authors.forename: Ana
authors.initials: A
authors.lastname: Lara
authors.forename: Antonio
authors.initials: A
authors.lastname: Torres
authors.forename: María Luisa
authors.initials: ML
authors.lastname: Martínez-Frías