Orphanet: Lethal polymalformative syndrome, Boissel type
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Lethal polymalformative syndrome, Boissel type

Disease definition

Lethal polymalformative syndrome, Boissel type is a rare, genetic, lethal, multiple congenital anomalies/dysmorphic syndrome characterized by failure to thrive, severe developmental delay, severe postanatal microcephaly, frequent congenital cardiac defects and characteristic facial dysmorphysm (including coarse face with anteverted nostrils, thin vermillion, prominent alveolar ridge and retro- or micrognatia). Additional common features include neurologic abnormalities (hyper-/hypotonia, sensorineural deafness, hydrocephalus, cerebral atrophy, seizures), as well as brachydactyly, cutis marmorata and genital anomalies.

ORPHA:210144

Classification level: Disorder
  • Synonym(s): -
  • Prevalence: <1 / 1 000 000
  • Inheritance: Autosomal recessive 
  • Age of onset: Infancy, Neonatal
  • ICD-10: Q87.8
  • OMIM: 612938
  • UMLS: C2752001
  • MeSH: -
  • GARD: -
  • MedDRA: -
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