Fusiform aneurysms of the distal anterior cerebral artery (DACA) are infrequent. Clip reconstruction and sequential progressive clipping have been described in the management of giant thrombosed DACA aneurysms.1,2 Customized revascularization with bypass, side-to-side anastomosis, and trapping of the aneurysmal segment have also been performed for treating DACA aneurysms.3-12 We present a 2-dimensional operative video of superficial temporal artery (STA) to distal anterior cerebral artery bypass, followed by trapping of the aneurysm-bearing segment. A 57-yr-old lady presented with a large ruptured subcallosal fusiform DACA aneurysm (WFNS grade 1, Fisher grade 1). Angiography revealed a 1.3 × 0.9 cm fusiform aneurysm in the DACA.
Informed consent was secured from the patient and her family for the surgery and permission was obtained for the publication of the patient's image/surgical video. The frontal and parietal branches of the STA were dissected. The parietal branch was explanted and used as a free interposition graft between the frontal branch (end-to-end anastomosis) and calloso-marginal artery (end-to-side anastomosis). After confirming blood flow through the bypass using Doppler, the aneurysm was trapped and excised.
The patient had an uneventful recovery. Her postoperative computed tomography (CT) head revealed no evidence of neurological insult. The patency of the bypass conduit and the complete removal of the aneurysm were confirmed using a digital subtraction angiogram. Histopathological examination revealed an eccentric atheromatous plaque with a lipid core. There was no evidence of intraplaque hemorrhage. This extended STA graft utilizing the frontal and parietal branches of the STA, and its implantation into the distal ACA, offers a novel bypass strategy for tackling fusiform aneurysms of the DACA. Anastomosis to the calloso-marginal artery ensured perfusion of the ACA territory through the pericallosal artery during temporary occlusion.
Noninfectious cerebral aneurysms are rare in patients with congenital cyanotic heart disease. We present a patient with DiGeorge/velocardiofacial syndrome with a complex congenital cyanotic heart disease with a ruptured anterior communicating artery aneurysm. The 10-year-old child was managed by surgical clipping of the aneurysm. Surgical challenges included prominent veins in the Sylvian fissure, difficulty in differentiating arterial and venous bleed, and anesthetic risks. The patient recovered without any neurological deficits. This is the first report of a patient with 22q11.2 deletion syndrome, with a noninfectious cerebral aneurysm.
Schwannoma arising from a pure motor cranial nerve in sporadic cases is a rare finding. We report adult female patient presented with a seizure without oculomotor palsy. On evaluation, she was diagnosed with cystic oculomotor schwannoma and underwent surgery. She developed oculomotor palsy postoperatively. Here, we describe a rare sporadic cystic oculomotor schwannoma.
Orbital cavernous hemangiomas (OCHs) are well encapsulated vascular lesions. They are amenable to dissection off the surroundings because they do not infiltrate the surrounding tissues. They are the third most common intraorbital lesion in the adult following lymphoid tumors and idiopathic orbital inflammation. 1-3 A spread pattern of contrast enhancement on dynamic CT or MRI favours OCHs. 4 An elderly lady presented with a history of protrusion of the right eye ball since 2 to 3 months. She also complained of increased tearing since 2 to 3 weeks. There was no history of diplopia or visual deterioration. Imaging revealed an intraconal lesion in the right eye which was inferomedial to the optic nerve. In view of the location, an endonasal transethmoidal approach was deemed most suitable. 5 We present a 2 dimensional video of the same. Informed consent was secured from the patient. The participants and any identifiable individuals consented to publication of his/her image. Histopathological examination revealed a cavernous hemangioma. Recovery was uneventful with complete resolution of proptosis.
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