FACTS
Hemangioblastoma
- benign WHO grade I vascular lesions, do not undergo malignant degeneration.
- most commonly in T >.C spine
- have an exophytic component (most commonly along the dorsum of the cord)
Hemangiomas
- peak 30-50 yrs, F > M
- usually in VB
IMAGING
Hemangioma | Hemangioblastoma |
Axial images: polka dot sign Longitudinal images: corduroy pattern Ca2+ frequent T2: mixed signal internally, hemosiderin ring is low T2 with blooming artifact | ㅤ |
Figure 1: Hemangioma: Honeycomb appearance on CT 2/2 thickened trabeculae
Figure 2: Hemangioblastoma on angiogram - densely enhancing nidus with associated dilated arteries and prominent draining veins.
A/P
Hemangioma | Hemangioblastoma |
ㅤ | - before operating, should check UA (pheochromocytoma) and CTAP (VHL) |
ㅤ | ㅤ |
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