XXXY syndrome(redirected from XXXXY Syndrome)
Management None, testosterone may improve secondary sexual characteristics
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.
XXXY syndrome(s)XXXXY syndrome A group of chromosome defects with multiple X chromosomes and one Y chromosome Clinical Somatic defects overlap Klinefelter syndrome–small undescended testes, hypoplastic penis, gynecomastia, mental retardation, wide-set eyes, ulnar and radial abnormalities; >1⁄2 of those with the 49, XXXXY syndrome present with low birth weight, muscle hypotonicity, profound mental and growth retardation, malformed ears, a short neck, hypertelorism with a mongoloid slant, flattened nose, hypoplastic external male genitalia, clinodactyly, radioulnar synostoses, coxa vara, genu varum, pes planus Treatment None, testosterone may improve 2º sexual characteristics
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.