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Microcephalic primordial dwarfism, Alazami type

Disease definition

Microcephalic primordial dwarfism, Alazami type is a rare, genetic developmental defect during embryogenesis syndrome characterized by severe intellectual disability, distinct dysmorphic facial features (i.e. triangular face with prominent forehead, narrow palpebral fissures, deep-set eyes, low-set ears, broad nose, malar hypoplasia, short philtrum, macrostomia, widely spaced teeth) and pre and postnatal proportionate short stature, ranging from primordial dwarfism (height below -3.5 SD) to a milder phenotype with less severe growth restriction (height below -2.5 SD). Other reported features include skeletal findings (e.g. scoliosis), microcephaly, involuntary hand movements, hypersensitivity to stimuli and behavioral problems, such as anxiety.


Classification level: Disorder
  • Synonym(s):
    • Alazami syndrome
  • Prevalence: <1 / 1 000 000
  • Inheritance: -
  • Age of onset: Antenatal, Neonatal
  • ICD-10: Q87.1
  • OMIM: 615071
  • UMLS: -
  • MeSH: -
  • GARD: -
  • MedDRA: -
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