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Bogaert-Divry Syndrome: Causes, Symptoms and Treatment
Bogaert-Divry Syndrome is a rare, hereditary disorder affecting blood vessels in the brain and skin, causing progressive neurological damage and characteristic skin lesions.
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Bogaert-Divry Syndrome is a rare, hereditary disorder affecting blood vessels in the brain and skin, causing progressive neurological damage and characteristic skin lesions.
What is Bogaert-Divry Syndrome?
Bogaert-Divry Syndrome is an extremely rare, genetically determined disorder first described by Belgian neurologists Ludo van Bogaert and J. Divry. It belongs to the group of neurocutaneous disorders (phakomatoses) and is characterized by a combination of vascular malformations in the central nervous system and distinctive skin changes. The condition is also referred to as diffuse corticomeningeal angiomatosis with leukoencephalopathy, meaning there is abnormal blood vessel growth in both the brain and the skin, leading to progressive neurological deterioration.
Causes
The exact genetic cause of Bogaert-Divry Syndrome has not been fully elucidated. An autosomal recessive inheritance pattern is suspected, meaning that both parents must carry the defective gene variant for a child to be affected. The underlying pathophysiology involves dysfunction of small blood vessels (capillaries and venules), resulting in diffuse angiomatosis -- excessive and abnormal vessel proliferation -- in the brain and skin. These vascular changes impair cerebral blood flow and can cause ischemic damage (oxygen deprivation) to brain tissue over time.
Symptoms
Bogaert-Divry Syndrome presents with a combination of neurological and dermatological symptoms, typically emerging during childhood or early adulthood:
- Neurological symptoms: Epileptic seizures, progressive intellectual disability or cognitive decline, dementia, stroke-like episodes, spasticity, and paresis (muscle weakness or paralysis).
- Psychiatric symptoms: Behavioral disturbances, personality changes, and psychotic episodes may occur in some individuals.
- Skin changes: Characteristic features include angiokeratomas -- small, dark red to purple vascular skin growths -- as well as a mottled skin pattern known as cutis marmorata, caused by vascular malformations in the skin.
- Ocular involvement: Retinal vascular abnormalities have been reported in some cases.
Diagnosis
Diagnosing Bogaert-Divry Syndrome is challenging due to its rarity and variable clinical presentation. The diagnostic workup typically includes:
- Clinical examination: Assessment of characteristic skin and neurological findings by specialists in neurology and dermatology.
- Brain imaging: Magnetic resonance imaging (MRI) commonly reveals signal abnormalities in the cerebral white matter (leukoencephalopathy), vascular malformations, and ischemic lesions.
- Skin biopsy: Histological analysis of skin lesions to confirm angiokeratomas and vascular anomalies.
- Genetic testing: Molecular genetic studies may support the diagnosis, although the specific causative gene has not yet been fully identified.
- Electroencephalography (EEG): Used to assess epileptic activity in the brain.
Treatment
There is currently no curative treatment for Bogaert-Divry Syndrome. Management is symptomatic and supportive, aiming to improve quality of life and prevent complications:
- Antiepileptic therapy: Anticonvulsant medications are used to manage and reduce epileptic seizures.
- Neurological rehabilitation: Physiotherapy, occupational therapy, and speech therapy help maintain and improve motor and cognitive function.
- Psychiatric care: Pharmacological and psychotherapeutic interventions address psychiatric symptoms where present.
- Dermatological management: Monitoring and treatment of skin lesions as required.
- Genetic counseling: Families affected by the syndrome are advised to seek genetic counseling to understand recurrence risks and family planning options.
Given the rarity of the syndrome, care in specialized centers for rare diseases is strongly recommended. Regular, interdisciplinary follow-up is essential for optimal long-term management.
References
- van Bogaert L, Divry J. - Sur une maladie familiale caracterisee par une angiomatose diffuse cortico-meningee non calcifiante et une demence progressive. - Journal Belge de Neurologie et de Psychiatrie, 1946.
- Orphanet - Rare Disease Database: Bogaert-Divry Syndrome. Available at: https://www.orpha.net (accessed 2024).
- Roach ES, Gomez MR, Northrup H. - Neurocutaneous syndromes: A practical guide. - Neurological Clinics, 2003.
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