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8p inverted duplication/deletion syndrome

Disease definition

A rare chromosomal anomaly clinically characterized by mild to severe intellectual disability, severe developmental delay (psychomotor and speech development), hypotonia with tendency to later develop progressive hypertonia, and characteristic facial features. The main congenital anomalies associated include central nervous system (CNS) malformations such as hypoplasia/agenesis of the corpus callosum (80%), skeletal abnormalities such as scoliosis/kyphosis or dislocated hips (60%), and congenital heart defects (25%).

ORPHA:96092

Classification level: Disorder
  • Synonym(s):
    • Invdupdel(8p)
    • Inverted 8p duplication/deletion syndrome
  • Prevalence: <1 / 1 000 000
  • Inheritance: Not applicable or Unknown 
  • Age of onset: Infancy, Neonatal
  • ICD-10: Q99.8
  • OMIM: -
  • UMLS: -
  • MeSH: -
  • GARD: -
  • MedDRA: -

Detailed information

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The documents contained in this web site are presented for information purposes only. The material is in no way intended to replace professional medical care by a qualified specialist and should not be used as a basis for diagnosis or treatment.