title: Confirmation of trisomy 22 by trypsin-giemsa staining.
abstract: A small-for-dates male infant with mental retardation, microcephaly, malformed ears, preauricular sinuses, epicanthal folds, micrognathia, congenital heart diseases, micropenis, and micropolygyria of the parietal and occipital lobes of the cerebral cortex was shown to have a 47,XY,+22 karyotype by trypsin-giemsa banding. Review of reported cases confirms that there may be distinctive trisomy 22 syndrome.
mesh_terms: D001399:Azure Stains; D002904:Chromosomes, Human, 21-22 and Y; D004314:Down Syndrome / Q000235:genetics; D005821:Genetic Techniques; D006801:Humans; D007223:Infant; D008297:Male; D014314:Trisomy; D014357:Trypsin
chemical_list: D001399:Azure Stains; D014357:Trypsin