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Holoprosencephaly

Medline NLM definition: Anterior midline brain, cranial, and facial malformations resulting from the failure of the embryonic prosencephalon to undergo segmentation and cleavage. Alobar prosencephaly is the most severe form and features anophthalmia; cyclopia; severe MENTAL RETARDATION; CLEFT LIP; CLEFT PALATE; SEIZURES; and microcephaly. Semilobar holoprosencepaly is characterized by hypotelorism, microphthalmia, coloboma, nasal malformations, and variable degrees of mental retardation. Lobar holoprosencephaly is associated with mild (or absent) facial malformations and intellectual abilities that range from mild mental retardation to normal. Holoprosencephlay is associated with CHROMOSOME ABNORMALITIES.

Holoprosencephaly: information from NORD, the National Organization for Rare Disorders (US site)

Cephalic Disorders: factsheet from NINDS, the National Institute of Neurological Disorders and Stroke (US site)


PubMed Medline search on Holoprosencephaly

Support Groups

No specific support groups listed.

Brain and Spine Foundation
Information on living with a neurological condition and on diagnosis. There are publications and resources. The useful glossary of neurological conditions (under 'Information and support') includes links to some other organisations as well as to Brain and Spine Foundation information.

Healthtalk: nerves and brain
Personal experiences of people living with various neurological conditions.

Neurological Alliance
Collective voice for 80 organisations, including stroke and brain injury. Organisations are listed at https://www.neural.org.uk/our-members/, a good place to start if looking for information on those conditions. Site also includes information about living with a neurological condition, a glossary, and information about onset and diagnosis as well as a small set of real life stories.

NHS Inform: brain, nerves and spinal cord 
NHS inform is Scotland's national health information service, with the aim of providing the people in Scotland with accurate and relevant information to help them make informed decisions about their own health and the health of the people they care for.


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