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Porencephalic cyst in pycnodysostosis.
  1. J Figueiredo,
  2. A Reis,
  3. R Vaz,
  4. M Leáo,
  5. C Cruz
  1. Department of Neurology and Neurosurgery, Hospital de S João, Porto, Portugal.


    We describe a case of pycnodysostosis with porencephaly and suggest an explanation for the porencephaly by a mechanism of imbalance between brain growth and its vascular supply and a normal but unopposed cerebrospinal fluid pressure.

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