Search for a rare disease

* (*) mandatory field

Other search option(s)

Suggest an update

(*) Required fields.


Only comments seeking to improve the quality and accuracy of information on the Orphanet website are accepted. For all other comments, please send your remarks via contact us. Only comments written in English can be processed.

Captcha image

Septopreoptic holoprosencephaly

Disease definition

Septopreoptic holoprosencephaly (HPE) is a very rare subtype of lobar HPE (see this term) characterized by midline fusion limited to the septal and/or preoptic regions of the telencephalon without a significant frontal neocortical fusion.


  • Synonym(s):
    • Septopreoptic HPE
  • Prevalence: Unknown
  • Inheritance: Multigenic/multifactorial 
  • Age of onset: Infancy, Neonatal
  • ICD-10: Q04.2
  • OMIM: 157170  609637  610829
  • UMLS: -
  • MeSH: -
  • GARD: -
  • MedDRA: -

Detailed information


Additional information

Further information on this disease

Specialised Social Services

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.