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FIG 9. Arachnoid cysts associated with hypothalamic hamartomas.
A, T1-weighted coronal view MR image shows a large suprasellar and temporal fossa arachnoid cyst, hypoplasia and compression of the right temporal lobe (bloom artifact due to previous cyst-peritoneal shunt insertion), and cavum septum pellucidum (arrow).
B, T1-weighted coronal view MR image shows a suprasellar arachnoid cyst extending within the hamartoma.
C, T2-weighted axial view MR image shows an anterior temporal arachnoid cyst (arrowhead) remote from the hamartoma (not shown).
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