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FIG 4. MR images of a 4-year-old boy, obtained 6 months after surgery (There were negative earlier imaging examinations).
A, Sagittal (600/15) fat-suppressed MR images shows thick, linear, enhancing tumor along the spinal cord and cauda equina (arrows). Contemporaneous CSF cytologic analysis was positive for tumor cells.
B, Axial (700/17) fat-suppressed MR images show amorphous prominently enhancing tumor filling the thecal sac. Contemporaneous CSF cytologic analysis was positive for tumor cells. The patient died 2 months later.
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