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Updated: Dec 31, 2025

Microsurgical Clip Obliteration of Middle Cerebral Aneurysm Using Intraoperative Flow Assessment
Published on: September 25, 2009
Correlation between multiple cerebral aneurysms and a rare type of segmental duplication of the middle cerebral
Nebojša N Stojanović1,2, Aleksandar Kostić3,4, Radisav Mitić3,4
1Clinic for Neurosurgery, Clinical Center, Zorana Đinđića 48, Niš, 18000, Serbia. nesamed59@gmail.com.
Background:
Connection between the duplication of the middle cerebral artery (DMCA) and the presence of multiple aneurysms has been described in a small number of cases.
Case Presentation:
The presence of a rare type of DMCA associated with cerebral aneurysms was diagnosed in 56 year old woman after a rupture of an aneurysm on the dorsal segment of the DMCA. .. The presence of equal diameters of branches of the DMCA and anterior cerebral artery (ACA) could be recorded as trifurcation of the carotid internal artery (ICA). However, due to the anastomosis of the DMCA branches in the area of the M2 segment, the recorded anatomical change represented a segmental duplication of MCA. Three aneurysms that were directly related to the segmental DMCA were diagnosed.
Conclusions:
Anatomical variation by type of segmental DMCA is a rare subtype of DMCA. The presence of multiple aneurysms associated with this type of anatomical variation in MCA indicates their high hemodynamic instability.
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