Simultaneous occurrence of developmental venous anomalies and cavernous angiomas

Area of Science:

• Neurology
• Radiology
• Vascular Malformations

Background:

• Developmental venous anomalies (DVAs) and cavernous angiomas (CAs) are common cerebral vascular malformations.
• The co-occurrence of DVAs and CAs can complicate diagnosis and management.
• Understanding the distinct clinical and radiological features of these co-occurring lesions is crucial.

Purpose of the Study:

• To investigate the clinical and radiological findings in patients with co-existing DVAs and CAs.
• To identify which of these vascular malformations precipitates acute clinical symptoms.
• To compare the diagnostic efficacy of CT and MRI in detecting DVAs and CAs.

Main Methods:

• Retrospective analysis of 15 patients with confirmed DVAs and CAs.
• Clinical examination and computed tomography (CT) scans for all patients.
• Magnetic resonance imaging (MRI) performed in 10 patients initially and 5 patients later.
• Correlation of imaging findings with acute clinical presentations.

Main Results:

• Acute clinical symptoms were observed in 9 patients, including epilepsy and hemiplegia.
• CT missed cavernous angiomas in 9 patients, particularly those with acute hemorrhage.
• MRI demonstrated superior detection rates for both cavernous angiomas and developmental venous anomalies compared to CT.
• Repeat MRI correctly identified all cavernous angiomas.

Conclusions:

• The frequent association between DVAs and CAs is confirmed.
• MRI is the preferred imaging modality for diagnosing both DVAs and CAs.
• Cavernous angiomas, especially when complicated by hemorrhage, are the likely cause of acute clinical symptoms.