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Cowden syndrome and Lhermitte-Duclos disease in a family: a single genetic syndrome with pleiotropy?
  1. C Eng,
  2. V Murday,
  3. S Seal,
  4. S Mohammed,
  5. S V Hodgson,
  6. M A Chaudary,
  7. I S Fentiman,
  8. B A Ponder,
  9. R A Eeles
  1. Department of Pathology, University of Cambridge, UK.

    Abstract

    Cowden syndrome is an autosomal dominant condition of multiple hamartomas. Patients with this phakomatosis have an increased risk of breast cancer and thyroid tumours. Lhermitte-Duclos disease is usually a sporadic condition of cerebellar ganglion cell hypertrophy, ataxia, mental retardation, and self-limited seizure disorder. We describe a three generation family with Cowden syndrome and Lhermitte-Duclos disease. Karyotyping performed on the peripheral lymphocytes of the proband and her affected mother showed a 46,XX complement. Single strand conformational polymorphism analysis failed to show any germline p53 mutations as a cause of the syndrome in this family.

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