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. Author manuscript; available in PMC: 2009 Apr 30.
Published in final edited form as: J Neurosurg Pediatr. 2009 Mar;3(3):197–202. doi: 10.3171/2008.11.PEDS0858

FIG. 2. Case 2.

FIG. 2

A: Axial T1-weighted MR image without contrast showing an extraaxial cystic lesion in the left temporal lobe. B: Axial T1-weighted MR image with contrast revealing the same lesion, which is nonenhancing. C: Axial T2-weighted MR image obtained at the same level, demonstrating the hyperintense tumor signal. D: Photomicrograph displaying tumor cells that form striking pseudorosette type structures around cerebral vessels. E: Photomicrograph showing tumor cells in subpial locations arranged in radial arrays perpendicular to the pial surface. H & E, original magnification × 100 (D) and × 160 (E).