Format

Send to

Choose Destination
See comment in PubMed Commons below
Am J Med Genet A. 2013 Sep;161A(9):2216-25. doi: 10.1002/ajmg.a.36062. Epub 2013 Aug 2.

Long-term follow-up of four patients with Langer-Giedion syndrome: clinical course and complications.

Author information

1
Institute of Medical Genetics, Department of Pediatrics, University of Zürich, Zürich, Switzerland. schinzel@medgen.uzh.ch

Abstract

Long-term observations of individuals with the so-called Langer-Giedion (LGS) or tricho-rhino-phalangeal type II (TRPS2) are scarce. We report here a on follow-up of four LGS individuals, including one first described by Andres Giedion in 1969, and review the sparse publications on adults with this syndrome which comprises ectodermal dysplasia, multiple cone-shaped epiphyses prior to puberty, multiple cartilaginous exostoses, and mostly mild intellectual impairment. LGS is caused by deletion of the chromosomal segment 8q24.11-q24.13 containing among others the genes EXT1 and TRPS1. Most patients with TRPS2 are only borderline or mildly cognitively delayed, and few are of normal intelligence. Their practical skills are better than their intellectual capability, and, for this reason and because of their low self-esteem, they are often underestimated. Some patients develop seizures at variable age. Osteomas on processes of cervical vertebrae may cause pressure on cervical nerves or dissection of cerebral arteries. Joint stiffness is observed during childhood and changes later to joint laxity causing instability and proneness to trauma. Perthes disease is not rare. Almost all males become bald at or soon after puberty, and some develop (pseudo) gynecomastia. Growth hormone deficiency was found in a few patients, TSH deficiency so far only in one. Puberty and fertility are diminished, and no instance of transmission of the deletion from a non-mosaic parent to a child has been observed so far. Several affected females had vaginal atresia with consequent hydrometrocolpos.

KEYWORDS:

FISH; Langer-Giedion syndrome; aCGH; contiguous gene syndrome; follow-up study; microdeletion 8q24; microdeletion syndrome

PMID:
23913778
DOI:
10.1002/ajmg.a.36062
[Indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments

    Supplemental Content

    Full text links

    Icon for Wiley
    Loading ...
    Support Center