What is a lesion in the pons?

Brainstem cavernous malformations are lesions that can be found in the pons, medulla, or midbrain regions. The brainstem is referred to as an ‘eloquent’ region of the brain because so many important functions are controlled by the nerves in this area.

What are pons on MRI?

The pons (TA: pons; plural: pontes 3), a.k.a. pons Varolii, is the middle portion of the three contiguous parts of the brainstem, sitting above the medulla and below the midbrain. It acts as a relay between the cerebellum and cerebral hemispheres.

Can MS affect the pons?

We have directly compared pontine lesions locations in MS and SVD-VRF cases and have shown that the presence of peripheral pons lesions (seen in about one-third of people with MS) is a useful discriminator for MS from VRF-associated lesions.

What does the pons do in the brain?

The pons is part of a highway-like structure between the brain and the body known as the brainstem. The brainstem is made up of three sections, and carries vital information to the body. The pons relays information about motor function, sensation, eye movement, hearing, taste, and more.

Are pons lesions progressive?

The authors found that lower pons lesions may contribute to progressive motor deficits in patients with acute pontine infarction. The infarct in the lower pons may affect the extent of ischemic degeneration in the corticospinal tract, leading to progressive motor deficits.

What happens if the pons are damaged?

Damage to the pons can result in serious problems as this brain area is important for connecting areas of the brain that control autonomic functions and movement. Injury to the pons may result in sleep disturbances, sensory problems, arousal dysfunction and coma.

What causes pons lesion?

Pons strokes can be caused by a blood clot or a ruptured blood vessel. Both types can lead to brain damage. People who have certain medical conditions, are inactive, or who smoke or use drugs are at higher risk for any kind of stroke. The risk of stroke also increases with age.

Why is the pons important?

The pons helps to regulate the respiratory system by assisting the medulla oblongata in controlling breathing rate. The pons is also involved in the control of sleep cycles and the regulation of deep sleep. The pons activates inhibitory centers in the medulla in order to inhibit movement during sleep.

What happens when the pons in the brain is damaged?

What is the difference between pons and medulla?

Pons is a point where sensory nerves of the brain connect or originate. The medulla is a part where the brain and body meet and communicate with each other. The medulla is responsible to give body signals from the brain to move in a rhythm.

Can you recover from pons damage?

Pontine Stroke Recovery Time Typically, if the stroke was small, you can recover within about 6 months. If the stroke was massive, then recovery can take years.

What is a presumptive radiographic diagnosis of central pontine lesions?

Clinicians occasionally receive radiographic reports noting pontine lesions in their patients who have undergone magnetic resonance imaging (MRI) for symptoms not referable to the pons. Based on these relatively isolated lesions, patients may receive the presumptive radiographic diagnosis of central …

What are T2-weighted hyperintense lesions in the pons?

T2-weighted hyperintense MRI lesions in the pons in patients with atherosclerosis. Amsterdam Vascular Medicine Group 1 Department of Neurology, Academic Medical Center, University of Amsterdam, Netherlands. [email protected] Background and purpose: Pontine hyperintense lesions (PHL) on T2-weighted MRI have been recognized recently.

Which radiographic findings are characteristic of central pontine myelinolysis (CPM)?

Clinicians occasionally receive radiographic reports noting pontine lesions in their patients who have undergone magnetic resonance imaging (MRI) for symptoms not referable to the pons. Based on these relatively isolated lesions, patients may receive the presumptive radiographic diagnosis of central pontine myelinolysis (CPM).

What are the histopathological findings of Pontine rarefaction?

The histopathological findings were similar to those found in LA. 23 Patients with pontine rarefaction more often suffered from hypertension and diabetes mellitus than patients without these lesions, but the differences were not statistically significant. The clinical relevance of pontine rarefaction is not clear.