What is Callosal septal interface?

What is Callosal septal interface?

The callososeptal interface is located on the inferior surface of the corpus callosum, where the septum pellucidum abuts it. It came to radiological attention when T2 hyperintense lesions affecting this region were believed to be specific for multiple sclerosis.

What is a Callosal lesion?

The callosal lesions most commonly involve the splenium, are usually eccentric in location, and can involve a focal part or the full thickness of the corpus callosum. On MR imaging, spinecho T2-weighted images and FLAIR sequences during the sagittal plane are most sensitive in detecting small nonhemorrhagic lesions.

What is T2 hyperintense lesion on liver?

Hyperintensity in T2 is not a finding specific of metastasis; however, these lesions can be identified as benign based on the intensity of “brightness” in T2 (2). Generally, cysts and hemangiomas have a higher and homogeneous intensity in T2 compared with malignant lesions (2).

What are periventricular lesions?

Periventricular lesions. A periventricular lesion is defined as a T2-hyperintense cerebral white matter lesion in direct contact with the lateral ventricles, without intervening white matter. Lesions abutting (touching) the ventricles and located in the corpus callosum are included in this definition (Fig.

What is periventricular region?

There are several locations for white matter lesions. Those around the center black spaces are called “periventricular white matter lesions”. Those located between the cortex and ventricles, with some space between, are just called “white matter lesions”.

What does Juxtacortical mean?

Juxtacortical is a general term and merely denotes ‘next to cortex’ and can be used in a variety of context depending on the structure (e.g. bone, brain, kidney etc.).

What happens when corpus callosum is damaged?

Lesions of any part of the corpus callosum might lead to loss of contact between bilateral hemispheres that cause mental disorders, pseudobulbar palsy, speech and movement ataxia.

What does periventricular mean in medical terms?

Medical Definition of periventricular : situated or occurring around a ventricle especially of the brain periventricular white matter.

What is periventricular?

Periventricular leukomalacia (PVL) is a softening of white brain tissue near the ventricles. The ventricles are fluid-filled chambers in the brain. These are the spaces in the brain that contain the cerebrospinal fluid (CSF). The white matter is the inner part of the brain.

Where is the callososeptal interface in the corpus callosum?

The callososeptal interface is located on the inferior surface of the corpus callosum, where the septum pellucidum abuts it.

What kind of lesions are found in the corpus callosum?

More common butterfly lesions involve the corpus callosum and both cerebral hemispheres—a pattern associated with aggressive tumors, demyelination, and traumatic brain injury. Unenhanced CT is a first-line neuroimaging modality. Although soft-tissue contrast enhance-

How is the callososeptal interface used in multiple sclerosis?

Involvement of the callososeptal interface may help in distinguishing multiple sclerosis from Susac syndrome as the latter predominantly involves the central part of the corpus callosum rather than the interface 2. 1. Kornienko VN, Pronin IN. Diagnostic Neuroradiology. Springer Verlag. (2008) ISBN:3540756523.

Can a lymphoma spread to the corpus callosum?

Lymphoma Primary CNS lymphoma is a rare and aggressive neoplasm that preferentially affects im- munocompromised patients and can involve or extend through the corpus callosum. The hy- percellular histology manifests with increased density on unenhanced CT.