BRAIN TUMORSANEURYSMSVASCULAR MALFORMATIONSTRIGEMINAL NEURALGIASPINE NECK BACKPARKINSONS DISEASEHEMIFACIAL SPASMCARPAL TUNNEL SYNDROME

Vascular Malformations Overview:

 

  • There are four types of vascular malformations as described by Dr. McCormick in 1966:

    • arteriovenous malformation (AVM)
    • cavernous malformation (or cavernoma)
    • venous angioma
    • capillary telangiectasia
  • Arteriovenous malformations or AVMs are dilated arteries and veins with dysplastic vessels and no capillaries.

  • They most commonly present with hemorrhage and less likely with seizures

  • AVMs are congenital with annual hemorrhage risk of about 2-4% per year.

  • Main treatment modalities include:
    • Surgical resection
    • Stereotactic radiosurgery
  • Cavernous malformations (or cavernomas) are well circumscribed benign vascular lesions consisting of irregular thick and thin vascular channels.

  • They usually present with seizures and less likely with new onset of hemorrhage.

  • Treatment is controversial and surgery may be reserved for symptomatic and accessible cavernomas.


The other two entities (venous angioma and capillary telangiectasia) are benign lesions which are typically asymptomatic and do not require any treatment.