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Enhancing Intramedullary Conus Lesions
A 3-year-old boy who has been limping and favoring the left lower extremity for approximately 1 month.
A 46-year-old man presenting with progressive bilateral lower extremity weakness and gait difficulty.
A 38-year-old man with von Hippel–Lindau disease presenting with bowel and bladder dysfunction.
A 29-year-old Brazilian man with numbness in both legs, difficulty walking, and urinary retention.
DESCRIPTION OF FINDINGS
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Case A: A heterogeneous, solid and cystic, T2 hyperintense, T1 hypointense, nonenhancing mass in a child that is expanding the conus.
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Case B: A heterogeneous, T2 hyperintense, avidly enhancing conus mass with a distinct plane between the tumor and the conus noted on T2 images.
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Case C: A T2 hyperintense, solid and cystic conus mass with a cyst and enhancing mural nodule configuration.
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Case D: Nodular, irregular enhancement of the peripheral conus with marked associated edema.
Diagnosis
Case A
Astrocytoma
Case B
Myxopapillary ependymoma
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