[Small supernumerary chromosomes].
We report 23 cases of small supernumerary chromosome examined at the Medical Genetics Center of Marseille. Genetic counselling is depending on the origin of the additional chromosomal material. Among the different cytogenetic technics which are useful in such an identification in situ hybridisation is a new technic very helpful in some cases, especially iso p18.
D002869:Chromosome Aberrations / Q000175:diagnosis* / Q000235:genetics; D025063:Chromosome Disorders; D005260:Female; D005817:Genetic Counseling; D006801:Humans; D007621:Karyotyping; D008297:Male; D010641:Phenotype; D011247:Pregnancy; D011296:Prenatal Diagnosis
Les petits chromosomes surnuméraires.