Dumbbell-Shaped Epidural Capillary Hemangioma
Bruno Badinanda,
Christophe Morelb,
Nicolas Koppc,
Van A. Tran Mina and
François Cottona
a Department of Radiology, Centre Hospitalier Lyon-Sud, Pierre-Bénite, Hôpital Neurologique et Neurochirurgical, Lyon, France
b Department of Neurosurgery, Hôpital Neurologique et Neurochirurgical, Lyon, France
c Anatomy and Pathology, Hôpital Neurologique et Neurochirurgical, Lyon, France
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FIG 1. Anteroposterior radiograph of the thoracic spine shows a thinning of the left pedicle at the T3-T4 level (arrow)
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FIG 2. Sagittal MR images.
A, T1-weighted image (600/15) shows a mass, probably epidural, with homogeneous isointensity relative to the spinal cord. The mass is surrounded by a rim of low signal intensity (arrowheads) located at the T2–T4 level.
B, T2-weighted image (3000/120) shows the homogeneously hyperintense mass surrounded by a rim of low signal intensity.
C, Gadolinium-enhanced T1-weighted image shows mostly intense, homogeneous enhancement of the lesion.
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FIG 3. Gadolinium-enhanced T1-weighted MR images clearly show extension to the left foramen at T3-T4 (arrows).
A, Axial image. The epidural mass compresses the anterior aspect of the thoracic spine (arrowhead).
B, Sagittal image.
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FIG 4. Photomicrograph obtained at histologic examination shows a tumor composed of thin and irregular capillary vessels (arrowheads) caught in low-attenuating fibrosis (arrows) (hematoxylin and eosin, original magnification x100).
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