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Bilateral mirror posterior inferior cerebellar artery aneurysms: diagnostic caveat on catheter angiography


Only three definitive cases of bilateral mirror proximal posterior inferior cerebellar artery (PICA) aneurysms have ever been reported. A fourth example is presented where each PICA aneurysm remained angiographically occult on contralateral vertebral artery angiography despite retrograde filling of the parent vessel PICA. Implications for clinical practice are discussed.

  • Artery
  • Brain
  • Aneurysm
  • Coil

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