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AJNR Am J Neuroradiol · Aug 2004
Case ReportsPre- and postnatal MR imaging of hypothalamic hamartomas associated with arachnoid cysts.
- Timothy N Booth, Charles Timmons, Kenneth Shapiro, and Nancy K Rollins.
- Department of Radiology, Children's Medical Center of Dallas and University of Texas Southwestern Medical Center, Dallas, TX, USA.
- AJNR Am J Neuroradiol. 2004 Aug 1; 25 (7): 1283-5.
AbstractWe 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.
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