Is an infundibulum normal?
Is an infundibulum normal?
Hence, although infundibular outpouchings are almost always normal, the documented cases of enlargement with aneurysm formation and rupture suggest that they can be predisposed to evolve into an aneurysm, albeit rarely.
What is an infundibulum?
Infundibulum: Definition and variation By definition, an infundibulum is a conical, triangular, or funnel-shaped dilatation of the origin of a major branch of the internal carotid artery (ICA).
Can an infundibulum turn into an aneurysm?
Unlike an aneurysm, an infundibulum is not believed to be a risk for rupture and subarachnoid hemorrhage. Only very rarely does an infundibulum eventually develop into an aneurysm 1 and it is generally not thought that an incidental infundibulum requires follow-up unless additional clinical concern is present.
What is posterior communicating artery?
The posterior communicating artery (PCOM) is a part of a group of arteries in the brain known as the circle of Willis. The artery connects the internal carotid and the posterior cerebral arteries. Its role is to provide blood supply to the brain.
What is the function of infundibulum?
The infundibulum catches and channels the released eggs; it is the wide distal (outermost) portion of each fallopian tube. The endings of the fimbriae extend over the ovary; they contract close to the ovary’s surface during ovulation in order to guide the free egg.…
What is the difference between infundibulum and aneurysm?
The main importance of an infundibulum is that it may be mistaken for a saccular (berry) aneurysm (which is rounded and has the branch at its base). Unlike an aneurysm, an infundibulum is not believed to be a risk for rupture and subarachnoid hemorrhage.
What happens in the infundibulum?
The infundibulum catches and channels the released eggs; it is the wide distal (outermost) portion of each fallopian tube. The endings of the fimbriae extend over the ovary; they contract close to the ovary’s surface during ovulation in order to guide the free egg.
What does the infundibulum do in the brain?
AKA infundibulum or pituitary stalk, the infundibular stalk is a tube-like structure that connects the posterior pituitary to the hypothalamus. It allows for hormones synthesized in the hypothalamus to be sent to the posterior pituitary for release into the bloodstream.
Is PCOM posterior circulation?
Anterior and posterior circulations provide the primary blood circulation of the brain. Both circulations are connected by the posterior communicating arteries (PCOM), which make up the circle of Willis.
What is the function of the anterior communicating artery?
In case of narrowing of other arteries of the circle of Willis or the arteries supplying the circle, the anterior communicating artery can provide a way to supply blood to the opposite (affected) side of the circle. This can often preserve the cerebral blood supply well enough to avoid the symptoms of ischemia.
What is another name for infundibulum?
Brain: the pituitary stalk, also known as the infundibulum and infundibular stalk, is the connection between the hypothalamus and the posterior pituitary.
Where is the infundibulum of the brain located?
The most common location for an infundibulum is the origin of the posterior communicating artery (PCOM) from the supraclinoid internal carotid artery. They are common, found in up to a quarter of all cerebral angiograms 1.