Table 1: Literature review of case reports and case series on posterior cerebral artery aneurysms.

N°	Title	Author	Aneurysm characteristics			Patient’s clinical state	Type of surgery	Intraoperative		Postoperative complications
N°	Title	Author	Type	Size	Localization	Patient’s clinical state	Type of surgery	Angiography	Endoscopy	Postoperative complications
1	Giant aneurysm of the posterior cerebral artery. Case report.	Obrador S (1966)	Sacular giant	50 mm	NR	Bilateral secondary optic atrophy, Severe blindness	Partial occipital lobectomy	No	No	Moderate left hemiparesis and Astereognosia in the left hand
2	Aneurysms of the posterior cerebral Artery.	Drake C [19]	Sacular: 5, Micotic: 1, Fusiform: 1, Multilocular: 1	NR	P1: 2, P2: 3, P3: 3	Subarachnoid hemorrhage	NR	No	No	Complete hemiplegia, Third cranial nerve palsy, Death, Incomplete hemisensory defect
3	Unusual MR features in a case of completely thrombosed giant aneurysm of the posterior cerebral Artery.	Rastogi H (1995)	Thrombosed giant	29 mm	P1/P2	Hemicranial headache, Diplopia, Motor weakness of left IV and V cranial nerves with right hemiparesis	Left temporal craniotomy	No	No	NR
4	Transcortical transchoroidal fissure approach for ruptured distal posterior cerebral Artery.	Onoda K (2003)	Sacular	NR	P2/P3	Altered consciousness, Headache and Vomiting	Transcortical transchoroidal fissure	Yes	No	Altered consciousness gradually relieved, Mild transient disturbance of memory
5	(p2-p3 junction) aneurysm associated with packed intraventricular hemorrhage - Two case reports.	Onoda K (2003)		NR	P2/P3	Altered consciousness	Transcortical transchoroidal fissure	Yes	No	Altered consciousness slightly improved
6	Large fusiform posterior cerebral artery aneurysm (P2 segment): Successful trapping and Excision via subtemporal approach.	Ramzisham A (2004)	Fusiform	25 mm	P2	Right occipitoparietal headache, Progressive ipsilateral ptosis and Diplopia	Subtemporal	Yes	No	Ptosis resolved eight weeks after surgery without new neurological deficits
7	Subtemporal approach for a P2-P3 junction aneurysm of the posterior cerebral artery.	Uygur E [23]	Sacular	20 mm	P2/P3	Left occipitoparietal headache	Subtemporal microsurgery	Yes	No	None
8	Complete loop of the posterior cerebral artery with ruptured aneurysm at the origin of the medial posterior choroidal artery. A case report.	Muzii V (2009)	Sacular	NR	P1/P2	Severe headache with sudden onset, Vomiting, Slurred speech and Loss of consciousness	Right subtemporal	Yes	No	None
9	Subarachnoid hemorrhage due to ruptured posterior cerebral artery aneurysm simultaneously associated with multiple remote intracerebral hemorrhages.	Sonobe S [22]	Sacular	NR	P1	Semicomatous with tetraparesis and bilateral oculomotor nerve palsy	Left subtemporal	Yes	No	Progressive improvement of altered consciousness, Tetraparesis and Bilateral oculomotor nerve palsy
10	Superficial temporal artery: Distal posterior cerebral artery bypass through the subtemporal approach: Technical note and pilot surgical cases	Kawashima A [26]	Thrombosed fusiform	20 mm	P2	Asymptomatic	Right subtemporal	Yes	No	None
11			Dissecting	18 mm	P1/P2	Hunt-Hess grade 3 subarachnoid hemorrhage	Left subtemporal	Yes	No	None
12			Fusiform with atherosclerosis	12 mm	P1/P2	Transient ischemic attacks and Cognitive dysfunction	Subtemporal	Yes	No	Transitional aphasia up to 1 week
13	Microsurgical clipping of giant P3 Segment. Posterior cerebral artery aneurysm: 2-dimensional operative video.	Eser P [25]	Thrombosed	NR	P3	Acute hydrocephalus	Parieto-occipital craniotomy	Yes	No	None
14	Endoport-assisted microsurgical treatment for a ruptured posterior cerebral artery aneurysm: A technical note.	Gomez J (2022)	Sacular	21 mm	P4	Severe headache, Drowsiness, Disorientation and Sudden generalized seizures	Transnuchal	Yes	Yes	Right hemianopia

^*NR: Not reported