The Wyburn Mason Syndrome involves arteriovenous malformations (AVM) in retinal and other blood vessels of the head and neck.


Sites for AVM – usually unilateral:

(1) retina (Type III AVM)

(2) mandible

(3) maxilla

(4) intracranial (midbrain, other)

(5) retro-bulbar

(6) facial angiomas


Ocular findings:

(1) poor vision in affected eye

(2) proptosis (secondary to AVM in retrobulbar soft tissue

(3) homonymous hemianopia (if optic tract involved)


Other findings:

(1) neurologic signs (pyramidal, other), depending on CNS involvement


To read more or access our algorithms and calculators, please log in or register.