Vascular Ehlers-Danlos-polymicrogyria syndrome

What it is

A rare type of Ehlers-Danlos syndrome characterized by connective tissue defects (joint laxity of finger joints and knees, small joint hypermotility and tissue fragility), vascular complications (atrioventricular defect, symptomatic cerebral aneurysm, vascular dissection) and frontoparietally-accentuated polymicrogyria of the cobblestone variant. Specific brain anomalies (including cerebrocortical dysplasia, cerebellar microcysts and white matter anomalies) are present in all patients. Most of the affected individuals have developmental delay, and may develop epilepsy. Additional clinical features include spontaneous intracranial hypotension, idiopathic intracranial hypertension, headache, chronic pain syndrome, peripheral neuropathy, plexopathy, translucent skin and clubfoot. Dysmorphic features such as eye anomalies (strabismus, bilateral hyperopia, esotropia, proptosis), pinched nose, thin upper lip, crowded teeth and retrognathia are also reported.

Key facts

Prevalence

<1 / 1 000 000

Age of onset

Infancy, Neonatal

Inheritance

Autosomal recessive

Classified as

Disease

Prevalence figures describe populations, not individuals, and are often estimates from a single study. Where the figure is an incidence or a birth prevalence, it says so.

Gene

ICD-10 codes

ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.

Related health topics

Reached through the ICD-10 categories this disease is filed under, so these describe the broader group rather than this disease specifically.

Cross-references