The following table and pie diagram show the Presence and Absence of Posterior
Communicating Artery.
Varma, "Microsurgical anatomy of the anterior cerebral artery-anterior
communicating artery complex: an Indian study," Neurology Asia, vol.
Acute subdural hematoma from ruptured posterior
communicating artery aneurysm.
Results: 38.3% of those were found to have normal posterior
communicating artery. In 38.2% cases it was found to be absent and in 23.3% cases hypoplastic.
Analyzing blood vessel diameters of the Willis circle in male and female respondents, whose presentation we give in Table 2, we can conclude that in both age groups among males, slightly higher diameters of the internal carotid artery (0.1-0.2 mm) was recorded compared to the female population and higher values of the P1 segment of the posterior cerebral artery, while the rear
communicating artery in females was 0.1 mm larger in diameter than in males within younger group of respondents.
In our case, we report a rare case of posterior
communicating artery aneurysm presenting with writing apraxia.
Available data from the trial also suggest that even very small (less than 7 ram) aneurysms have a potential for hemorrhage that is "noteworthy and certainly far from zero" if they are located in the posterior
communicating artery or posterior circulation.
Optochiasmal arachnoiditis following cotton wrapping of anterior
communicating artery aneurysm treated by surgical removal of granuloma.
of California, San Francisco) details the basic concepts and tenets of aneurysm microsurgery, various craniotomies and exposures for successful clipping, and microsurgical anatomy, dissection strategies, and clipping techniques for each of the seven most common aneurysm types: posterior and anterior
communicating artery, middle cerebral artery, ophthalmic artery, basilar bifurcation, pericallosal artery, and posterior inferior cerebellar artery aneurysms.
The primary routes of collateral circulation are the Willisian channels (anterior
communicating artery, posterior
communicating artery, and the ophthalmic via the external carotid artery).
The right- and leftsided arteries then are connected by the anterior
communicating artery, which forms the anterior half of the circle of Willis, the system of arteries that nourishes and oxygenates the brain.
In 1%-2% of women, however, one uterine artery is hypoplastic, and a large
communicating artery connects the ovarian artery to the uterus.
