Cavernous malformations usually are not diagnosed until they start causing symptoms. When possible symptoms appear, your doctor may recommend a magnetic resonance imaging (MRI) scan, which remains the best way to diagnose cavernous malformations.
MRI scans may be repeated over the course of your treatment to detect any change in the size of the malformation, recent bleeding and the appearance of new lesions. MRI is a non-invasive procedure that uses powerful magnets and radio waves to construct pictures of the body.
UCSF Health medical specialists have reviewed this information. It is for educational purposes only and is not intended to replace the advice of your doctor or other health care provider. We encourage you to discuss any questions or concerns you may have with your provider.