PMC3037088_01
Photographs of the patients showing miosis, ptosis, and heterochromia iridum (A, left eye; B, C, right eye).
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Physical exam showed right-sided ptosis, myosis, and iris hypochromia (Figure 1C).
A) MRA showing the circle of Willis with the absence of the left ICA, and dissection of the right ICA, ACmA supplying the left ACA, and left PCmA supplying the left MCA. B) MRA showing the circle of Willis with absence of right ICA and the multiple transcranial anastomosis with the right external carotid artery. C) CTA showing the circle of Willis with absence of right ICA with the anterior communicating artery supplying the right anterior cerebral artery and the right posterior communicating artery supplying the right middle cerebral artery.. Abbreviations: MRA, magnetic resonance angiography; ICA, internal carotid artery; ACA, anterior cerebral artery; MCA, middle cerebral artery; CTA, computed tomography angiography; ACmA, anterior communicating artery; PCmA, posterior communicating artery.
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Brain MRI was normal but carotid angioscan showed agenesis of the right ICA, anterior communicating artery supplying the right ACA, and the right posterior communicating artery supplying the right MCA (Figure 2C).
CT scan of the base of the skull showing hypoplastic carotid canal at A) left and at B, C) right.. A = case 1, B = case 2, C = case 3. Abbreviation: CT, computed tomography.
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Base of skull CT scan showed hypoplasia of the right carotid canal (Figure 3C).
PMC3037088_02
Photographs of the patients showing miosis, ptosis, and heterochromia iridum (A, left eye; B, C, right eye).
vhrm-7-037f1.jpg
PMC3037088_03_vhrm-7-037f1.jpg
f1-vhrm-7-037
Physical exam showed right-sided ptosis, myosis, and iris hypochromia (Figure 1C).
A) MRA showing the circle of Willis with the absence of the left ICA, and dissection of the right ICA, ACmA supplying the left ACA, and left PCmA supplying the left MCA. B) MRA showing the circle of Willis with absence of right ICA and the multiple transcranial anastomosis with the right external carotid artery. C) CTA showing the circle of Willis with absence of right ICA with the anterior communicating artery supplying the right anterior cerebral artery and the right posterior communicating artery supplying the right middle cerebral artery.. Abbreviations: MRA, magnetic resonance angiography; ICA, internal carotid artery; ACA, anterior cerebral artery; MCA, middle cerebral artery; CTA, computed tomography angiography; ACmA, anterior communicating artery; PCmA, posterior communicating artery.
vhrm-7-037f2.jpg
PMC3037088_03_vhrm-7-037f2.jpg
f2-vhrm-7-037
Brain MRI was normal but carotid angioscan showed agenesis of the right ICA, anterior communicating artery supplying the right ACA, and the right posterior communicating artery supplying the right MCA (Figure 2C).
CT scan of the base of the skull showing hypoplastic carotid canal at A) left and at B, C) right.. A = case 1, B = case 2, C = case 3. Abbreviation: CT, computed tomography.
vhrm-7-037f3.jpg
PMC3037088_03_vhrm-7-037f3.jpg
f3-vhrm-7-037
Base of skull CT scan showed hypoplasia of the right carotid canal (Figure 3C).
PMC3037088_03
Photographs of the patients showing miosis, ptosis, and heterochromia iridum (A, left eye; B, C, right eye).
vhrm-7-037f1.jpg
PMC3037088_03_vhrm-7-037f1.jpg
f1-vhrm-7-037
Physical exam showed right-sided ptosis, myosis, and iris hypochromia (Figure 1C).
A) MRA showing the circle of Willis with the absence of the left ICA, and dissection of the right ICA, ACmA supplying the left ACA, and left PCmA supplying the left MCA. B) MRA showing the circle of Willis with absence of right ICA and the multiple transcranial anastomosis with the right external carotid artery. C) CTA showing the circle of Willis with absence of right ICA with the anterior communicating artery supplying the right anterior cerebral artery and the right posterior communicating artery supplying the right middle cerebral artery.. Abbreviations: MRA, magnetic resonance angiography; ICA, internal carotid artery; ACA, anterior cerebral artery; MCA, middle cerebral artery; CTA, computed tomography angiography; ACmA, anterior communicating artery; PCmA, posterior communicating artery.
vhrm-7-037f2.jpg
PMC3037088_03_vhrm-7-037f2.jpg
f2-vhrm-7-037
Brain MRI was normal but carotid angioscan showed agenesis of the right ICA, anterior communicating artery supplying the right ACA, and the right posterior communicating artery supplying the right MCA (Figure 2C).
CT scan of the base of the skull showing hypoplastic carotid canal at A) left and at B, C) right.. A = case 1, B = case 2, C = case 3. Abbreviation: CT, computed tomography.
vhrm-7-037f3.jpg
PMC3037088_03_vhrm-7-037f3.jpg
f3-vhrm-7-037
Base of skull CT scan showed hypoplasia of the right carotid canal (Figure 3C).