RT Journal Article SR Electronic T1 Chromosome 20 long arm deletion in an elderly malformed man. JF Journal of Medical Genetics JO J Med Genet FD BMJ Publishing Group Ltd SP 171 OP 173 DO 10.1136/jmg.30.2.171 VO 30 IS 2 A1 F Shabtai A1 E Ben-Sasson A1 S Arieli A1 J Grinblat YR 1993 UL http://jmg.bmj.com/content/30/2/171.abstract AB A 46,XY/46,XY,del(20)(q13-->q13.33) mosaicism was identified in a 68 year old man who had mild mental retardation and severe malformation of the limbs. The clinical findings of the patient are compared to those of the very few cases of 20q deletion published to date.