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Basilar arterio-venous pseudoparallelism due to persistence of embryonal venous pattern
R de Caro1, A Parenti, G Capitanio
1Institute of Human Anatomy, University of Padova, Italy.
Acta Neurochirurgica
|January 1, 1990
Summary
A rare venous vascular malformation in the posterior fossa, potentially linked to persistent embryonal patterns, was identified. This silent condition ultimately led to fatal thrombosis after 52 years.
Area of Science:
- Neuroscience
- Vascular Malformations
- Embryology
Background:
- Vascular malformations represent abnormal development of blood vessels.
- Persistence of embryonal venous patterns can lead to congenital abnormalities.
Observation:
- A venous vessel bridged the right inferior petrosal sinus and anterior spinal veins in the posterior fossa.
- The malformation encircled the right trigeminal root, dorsal to the basilar artery.
- Associated findings included cutaneous and hepatic angiomas and peri-osteal lipomas.
Findings:
- The vascular malformation remained clinically silent for 52 years.
- The malformation thrombosed, resulting in a fatal outcome.
- The authors propose a link to persistent embryonal cerebral venous patterns within a generalized mesenchymopathy.
Implications:
- This case highlights the potential long-term clinical significance of persistent embryonal venous patterns.
- Understanding such malformations is crucial for diagnosing and managing rare vascular conditions.
- The association with other mesenchymal anomalies suggests a potential underlying genetic or developmental disorder.