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Case No. 731
2025-09-01~2025-09-30
출제자 : 주비오
Hit : 487
| Period | 2025-09-01~2025-09-30 |
|---|---|
| Diagnosis | Spinal pilocytic astrocytoma |
| Gender |
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| Age | 35 |
| Clinical information | M/35 gait disturbance, weakness |
| Discussion | Spinal pilocytic astrocytoma (PA) is a rare, slow-growing glioma of the spinal cord, most commonly seen in children and young adults, and classified as a WHO grade 1 tumor. The thoracic and cervical regions are the most frequent sites of involvement. On MRI, spinal PAs typically appear as well-circumscribed intramedullary masses, usually hypointense on T1-weighted and hyperintense on T2-weighted images. They are often eccentric in location, displacing rather than diffusely infiltrating the cord. Cyst formation or associated syringomyelia is common. Contrast enhancement is frequently observed, ranging from focal nodular to diffuse patterns, while hemorrhage and calcification are uncommon. The present case demonstrates somewhat atypical features, including ill-defined margins, extensive syrinx formation, hemorrhage, and calcification. |
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