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Click 49 year old female with a left calvarial cavernous hemangioma. Axial non-contrast CT (bone algorithm) demonstrates a left orbito-frontal intradiploic expansile circumscribed lesion with a course internal trabeculation pattern without a well defined sclerotic margin.

Click 49 year old female with a left calvarial cavernous hemangioma. Coronal non-contrast CT (bone algorithm) demonstrates a left orbito-frontal intradiploic expansile circumscribed lesion with a course internal trabeculation pattern without a well defined sclerotic margin.

Click 49 year old female with a left calvarial cavernous hemangioma. Axial T2 weighted MRI demonstrating intermediate T2 signal within the lesion.

Click 49 year old female with a left calvarial cavernous hemangioma. Sagittal T1 weighted MRI demonstrating a 16 x 23 x 22 mm intra-diploic circumscribed mass, intermediate T1 signal.

Click 49 year old female with a left calvarial cavernous hemangioma. Sagittal T1 weighted MRI demonstrating a 16 x 23 x 22 mm intra-diploic circumscribed mass, intermediate T1 signal with avid gadolinium enhancement.

Click 49 year old female with a left calvarial hemangioma. Scintigraphic imaging of head and neck after injection of 26.9 mCi of Tc99m RBC. Planar blood flow images revealing increased uptake within the left orbito-frontal lesion.

Click 49 year old female with a left calvarial hemangioma. Scintigraphic imaging of head and neck with injection of 26.9 mCi of Tc99m RBC. SPECT axial and sagittal images reveal intense uptake within the left orbito-frontal lesion after a forty five minute delay.