Table 1 Summary of cases of duplicated middle cerebral artery accompanied with distal aneurysms
From: Duplicated middle cerebral artery associated with aneurysm at M1/M2 bifurcation: a case report
Case | Age (years), sex | Ethnicity | Size of MCA (mm) | Location of aneurysm | Size of aneurysm (mm) | Rupture | Treatment | Outcome | Associated aneurysm or vessel anomaly | Reference | |
|---|---|---|---|---|---|---|---|---|---|---|---|
MCA | DMCA | ||||||||||
1 | 67, F | Asian (Japanese) | 0.71 | 0.37 | M1 of main MCA | ND | + | ND | ND | – | [12] |
2 | 66, M | Asian (Japanese) | 0.92 | 0.32 | M1/M2 of main MCA | ND | + | ND | ND | AComA aneurysm | [12] |
3 | 55, F | ND | Both arteries were similar in size | Sylvian portion of the main MCA | ND | + | Clipping | Death | Contralateral MCA aneurysm (superior trunk) | [13] | |
4 | 45, F | Asian (Japanese) | Both arteries were similar in size | Distal trunk of DMCA | ND | + | Clipping | GR | Bilateral accessory MCA | [14] | |
5 | 34, F | Black | DMCA was smaller than the main MCA | Inferior division of main MCA | ND (>  10 mm in figure) | + | Clipping | GR | – | [15] | |
Present case | 62, M | Asian (Japanese) | Almost the same | DMCA | 3 | _ | Observation | No change | Ipsilateral ICA top aneurysm | Â | |