Journal
NEUROLOGIA MEDICO-CHIRURGICA
Volume 50, Issue 4, Pages 328-329Publisher
JAPAN NEUROSURGICAL SOC
DOI: 10.2176/nmc.50.328
Keywords
cavernous angioma; intradural extramedullary tumor; supratentorial high convexity; mass sign
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A 59-year-old man presented with a 2-month history of numbness in the lower left side of the face and upper left extremity. Axial T(1)-weighted magnetic resonance imaging showed a wedge-shaped mass measuring 3 x 2.5 cm in the right frontoparietal high convexity area that was heterogeneously enhanced after administration of gadolinium-diethylenetriaminepenta-acetic acid. Right frontoparietal craniotomy was performed and a bluish soft mass was found under the arachnoid membrane. The mass could be dissected free from the arachnoid membrane and the brain surface. Histological examination revealed the typical findings of cavernous angioma. Cavernous angioma should be considered in the differential diagnosis of supratentorial high convexity intradural extramedullary tumor, especially appearing as a heterogeneously enhanced mass adjacent to the brain parenchyma causing mass effect.
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