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Fig 1 | The Journal of Headache and Pain

Fig 1

From: Cluster headache associated with moyamoya

Fig 1

a Lateral view from a selective right internal carotid angiogram shows occlusion of the supraclinoid ICA with “puff of smoke” from basal collateral vessels. b, d 3-D volume rendered SPECT images prior to surgical intervention demonstrate profound hypoperfusion in the right middle cerebral arterial distribution. c, e Images obtained following STA–MCA bypass show virtually normal and symmetric perfusion

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