Vascular compression of cranial nerves at the posterior fossa.
D003388:Cranial Fossa, Posterior / Q000098:blood supply*; D003391:Cranial Nerves; D006801:Humans; D009408:Nerve Compression Syndromes / Q000503:physiopathology*; D011312:Pressure / Q000009:adverse effects; D012886:Skull / Q000098:blood supply*