case_images: PMC10652563_01
case_images: Three-dimensional time-of-flight magnetic resonance angiography at 8 years old shows bilateral occlusion of the supraclinoid internal carotid arteries (arrows) and development of collateral arteries (arrowheads).
case_images: fped-11-1289554-g001.jpg
case_images: PMC10652563_01_fped-11-1289554-g001.jpg
case_images: F1
case_images: Magnetic resonance imaging and angiography showed old cerebral infarction in the left temporal lobe and bilateral occlusion of the terminal portions of the internal carotid arteries with development of collateral arteries consistent with moyamoya syndrome (Figure 1).
case_images: Time series of radiological features in this case. (A) N-isopropyl-p-[123I]iodoamphetamine single-photon emission computed tomography at 8 years old shows no cortical hypoperfusion. (B) Single-photon emission computed tomography at 9 years old shows hypoperfusion in the left occipital lobe (arrow). (C) Single-photon emission computed tomography at 11 years old (2 years after indirect revascularization) shows improved perfusion (arrow). (D) Left external carotid angiography at 12 years old shows sufficient blood supply to the left hemisphere via transdural anastomosis, but insufficient blood supply to the left central region (dotted circle). (E) Left internal carotid angiography at 12 years old shows the left central region with blood flow supplied by choroidal anastomosis (dotted circle). (F) Computed tomography of the brain at 13 years old shows left thalamic (arrow) and intraventricular hemorrhage, attributed to the dilated left anterior choroidal artery.
case_images: fped-11-1289554-g002.jpg
case_images: PMC10652563_03_fped-11-1289554-g002.jpg
case_images: F2
case_images: Coma Scale of 14 and blood pressure of 127/81 mmHg. Computed tomography (CT) of the brain revealed left thalamic hemorrhage with left intraventricular hemorrhage (Figure 2F), considered as a cerebral hemorrhage attributable to the left dilated anterior choroidal artery.
case_images: PMC10652563_02
case_images: Time series of radiological features in this case. (A) N-isopropyl-p-[123I]iodoamphetamine single-photon emission computed tomography at 8 years old shows no cortical hypoperfusion. (B) Single-photon emission computed tomography at 9 years old shows hypoperfusion in the left occipital lobe (arrow). (C) Single-photon emission computed tomography at 11 years old (2 years after indirect revascularization) shows improved perfusion (arrow). (D) Left external carotid angiography at 12 years old shows sufficient blood supply to the left hemisphere via transdural anastomosis, but insufficient blood supply to the left central region (dotted circle). (E) Left internal carotid angiography at 12 years old shows the left central region with blood flow supplied by choroidal anastomosis (dotted circle). (F) Computed tomography of the brain at 13 years old shows left thalamic (arrow) and intraventricular hemorrhage, attributed to the dilated left anterior choroidal artery.
case_images: fped-11-1289554-g002.jpg
case_images: PMC10652563_03_fped-11-1289554-g002.jpg
case_images: F2
case_images: Coma Scale of 14 and blood pressure of 127/81 mmHg. Computed tomography (CT) of the brain revealed left thalamic hemorrhage with left intraventricular hemorrhage (Figure 2F), considered as a cerebral hemorrhage attributable to the left dilated anterior choroidal artery.
case_images: PMC10652563_03
case_images: Time series of radiological features in this case. (A) N-isopropyl-p-[123I]iodoamphetamine single-photon emission computed tomography at 8 years old shows no cortical hypoperfusion. (B) Single-photon emission computed tomography at 9 years old shows hypoperfusion in the left occipital lobe (arrow). (C) Single-photon emission computed tomography at 11 years old (2 years after indirect revascularization) shows improved perfusion (arrow). (D) Left external carotid angiography at 12 years old shows sufficient blood supply to the left hemisphere via transdural anastomosis, but insufficient blood supply to the left central region (dotted circle). (E) Left internal carotid angiography at 12 years old shows the left central region with blood flow supplied by choroidal anastomosis (dotted circle). (F) Computed tomography of the brain at 13 years old shows left thalamic (arrow) and intraventricular hemorrhage, attributed to the dilated left anterior choroidal artery.
case_images: fped-11-1289554-g002.jpg
case_images: PMC10652563_03_fped-11-1289554-g002.jpg
case_images: F2
case_images: Coma Scale of 14 and blood pressure of 127/81 mmHg. Computed tomography (CT) of the brain revealed left thalamic hemorrhage with left intraventricular hemorrhage (Figure 2F), considered as a cerebral hemorrhage attributable to the left dilated anterior choroidal artery.
case_images: Angiographic features before and after hemorrhagic stroke in this case. (A) Left internal carotid angiography at 12 years old before hemorrhagic stroke shows dilation of the left anterior choroidal artery (arrow). (B) Left internal carotid angiography 4 months after hemorrhagic stroke shows spontaneous regression of the dilated left anterior choroidal artery (arrow).
case_images: fped-11-1289554-g003.jpg
case_images: PMC10652563_03_fped-11-1289554-g003.jpg
case_images: F3
case_images: Four months later, cerebral angiography showed spontaneous regression of the dilated left anterior choroidal artery (Figures 3A, B).