Table 1.
Aneurysms associated with accessory MCA.
| Case | Study | Age/sex | Presentation | Size (mm) | Morphology | Side | Location of ac-MCA and aneurysm | Accompanying intracranial anomalies | Treatment | Procedure-related complication | Outcome (GOS) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Waga et al. (5) | 51/F | SAH | Small | Saccular | L | A1, origin | NA/NM | Clipping | NA/NM | 1 |
| 2 | Handa et al. (6) | 55/F | SAH | Small | Saccular | R | A1, origin | NA/NM | Clipping | No | 5 |
| 3 | Fuwa et al. (7) | 57/M | SAH | Small | Saccular | L | A1, origin | Right ICA-PComA aneurysm | Clipping | No | 5 |
| 4 | Miyazaki et al. (8) | 42/M | SAH | Small | Saccular | L | A1, origin | No | Clipping | No | 5 |
| 5 | Kuwabara et al. (9) | 73/F | SAH | 4 × 6 | Saccular | R | A1, origin | No | Clipping | Hydrocephalus | 5 |
| 6 | Han et al. (10) | 34/F | SAH | 4 × 5 | Saccular | L | A1, origin | No | Clipping | No | 5 |
| 7 | Sugita et al. (11) | 53/M | Visual disturbance | Giant | Saccular | R | A1, origin | No | Clipping | No | 5 |
| 8 | Otawara et al. (12) | 66/F | SAH | Small | Dissecting | R | A1, origin | Ipsilateral A1 dissecting aneurysm | Wrapping | No | 2 |
| 9 | Georgopoulos et al. (13) | 32/F | SAH, IVH, ICH | Small | Saccular | L | A1, trunk | No | Clipping | No | 4 |
| 10 | Fujiwara et al. (14) | 30/M | SAH | 3 × 5 | Saccular | R | A1, origin | No | Clipping | No | 5 |
| 11 | Kang et al. (15) | 38/M | SAH | 4 × 5 | Saccular | L | A1, origin | No | Clipping | No | 5 |
| 12 | Lee et al. (16) | 59/F | SAH | 7.3 × 4.8 | Saccular | L | A1, origin | Contralateral ac-MCA at A1 | Coiling | No | 5 |
| 13 | Wakabayashi et al. (17) | 36/F | SAH | 3 × 6 | Saccular | L | A1, origin | Ipsilateral ac-MCA at A2 | Clipping | No | 5 |
| 14 | Lee et al. (18) | 56/M | SAH, IVH | Small | Lobular pseudoaneurysm | R | ACA, trunk | Right MMD involving ICA, ACA, and MCA | Resection of aneurysm and distal ac-MCA | No | 5 |
| 15 | Nomura et al. (4) | 64/M | CI | Small | Saccular | L | A1, origin | No | Clipping | No | 5 |
| 16 | Teramoto et al. (19) | 68/M | ICH | 7 | Saccular | R | A2, trunk | Ipsilateral M1 stenosis | Clipping | No | 5 |
| 17 | Parthasarathy et al. (20) | 4/F | SAH | 8.8 × 2.1 | Fusiform dissecting | R | A1-A2 junction, trunk | Contralateral d-MCA | Aneurysm and parent artery occlusion with glue | No | 5 |
| 18 | Kheyreddin et al. (21) | 37/F | SAH and ICH | 25 | Saccular | R | A1, trunk | No | Clipping | No | 5 |
| 19 | Ren et al. (22) | 59/M | ICH | Small | Saccular | R | A1-A2 junction, trunk | Ipsilateral d-MCA origin | Palliative coiling | No | 5 |
| 20 | Present case | 59/M | SAH | 6.5 × 3.0 | Saccular | L | A1, origin | Contralateral ac-MCA | Coiling | No | 5 |
ACA, anterior cerebral artery; CI, cerebral infarction; F, female; GOS, Glasgow Outcome Scale; ICA, internal carotid artery; ICH, intracerebral hemorrhage; IVH, intraventricular hemorrhage; L, left; M, male; MCA, middle cerebral artery; MMD, moyamoya disease; NA/NM, not applicable or not mentioned; PComA, posterior communicating artery; R, right; SAH, subarachnoid hemorrhage.