Pre- and postnatal MR imaging of hypothalamic hamartomas associated with arachnoid cysts

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Abstract

We describe two cases of hypothalamic hamartoma associated with arachnoid cysts. One case was initially documented on prenatal MR images. Because of the rarity of the association and resultant distortion in regional anatomy, the solid component of the mass may be overlooked. This would certainly be true when using lower-resolution diagnostic studies such as fetal MR imaging. The lesion could also be confused with a cystic tumor such as pilocytic astrocytoma. Thorough evaluation is required in patients with precocious puberty, gelastic seizures, and the presence of a suprasellar arachnoid cyst.

Original languageEnglish (US)
Pages (from-to)1283-1285
Number of pages3
JournalAmerican Journal of Neuroradiology
Volume25
Issue number7
StatePublished - Aug 1 2004

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Clinical Neurology

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