Medical Definition of Hallermann-Streiff syndrome

  • Medical Author:
    Melissa Conrad Stöppler, MD

    Melissa Conrad Stöppler, MD, is a U.S. board-certified Anatomic Pathologist with subspecialty training in the fields of Experimental and Molecular Pathology. Dr. Stöppler's educational background includes a BA with Highest Distinction from the University of Virginia and an MD from the University of North Carolina. She completed residency training in Anatomic Pathology at Georgetown University followed by subspecialty fellowship training in molecular diagnostics and experimental pathology.

Hallermann-Streiff syndrome: a rare congenital condition characterized by abnormalities of the skull and bones of the face; characteristic facial features; sparse hair; degenerative skin changes; eye abnormalities; dental defects, and proportionate short stature. Some affected people have intellectual disability. The condition has also been referred to as HSS or Hallermann Streiff Francois syndrome. The abnormal facial features can include a short, broad head (brachycephaly), a prominent forehead and/or sides of the skull (frontal bossing); a small lower jaw (micrognathia); a narrow, highly arched palate; and a thin, pinched, tapering nose (beaked nose). The genetic cause of Hallermann-Streiff syndrome is not understood and most cases occur randomly for unknown reasons (sporadically).

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Reviewed on 9/7/2018

REFERENCE:

National Institutes of Health, Genetic and Rare Disease Information Center. "Hallermann-Streiff Syndrome."
<https://rarediseases.info.nih.gov/diseases/288/hallermann-streiff-syndrome>

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