Intracranial infections - 3 - Focal Infections
Focal infections are those infections of the brain which are walled off either within the brain parenchyma or in the extra-axial space, such as subdural or epidural abscess.
This lecture is the third in a series of 5 about imaging intracranial infection and covers focal brain infections. The series of videos will cover:
1) General considerations
2) Diffuse infections
3) Focal infection
4) Immunocompromised patients
5) Other considerations
Abscess in the brain, regardless of location, is characterized by hyperintensity on diffusion weighted imaging. There is often mass effect, surrounding edema, and a peripherally enhancing fluid collection. Abscess can arise from local infection, such as a surgery or sinusitis, or can occur from hematogenous spread.
Ventriculitis is a highly morbid complication of intracranial abscess, as can be found when pus spills into the ventricle. Sinus thrombosis is also a potential complication of intracranial abscess.
One key feature which separates the diffusion restriction of abscess from lymphoma is that the abnormal DWI is in the center of a peripherally enhancing collection, whereas in lymphoma it is the enhancing portion itself which is restricted.
The level of this lecture is appropriate for radiology residents, radiology fellows, and trainees in other specialties who have an interest in neuroradiology or may see patients with CNS infections.
Check out this video and additional content on http://www.learnneuroradiology.com
Видео Intracranial infections - 3 - Focal Infections канала LearnNeuroradiology
This lecture is the third in a series of 5 about imaging intracranial infection and covers focal brain infections. The series of videos will cover:
1) General considerations
2) Diffuse infections
3) Focal infection
4) Immunocompromised patients
5) Other considerations
Abscess in the brain, regardless of location, is characterized by hyperintensity on diffusion weighted imaging. There is often mass effect, surrounding edema, and a peripherally enhancing fluid collection. Abscess can arise from local infection, such as a surgery or sinusitis, or can occur from hematogenous spread.
Ventriculitis is a highly morbid complication of intracranial abscess, as can be found when pus spills into the ventricle. Sinus thrombosis is also a potential complication of intracranial abscess.
One key feature which separates the diffusion restriction of abscess from lymphoma is that the abnormal DWI is in the center of a peripherally enhancing collection, whereas in lymphoma it is the enhancing portion itself which is restricted.
The level of this lecture is appropriate for radiology residents, radiology fellows, and trainees in other specialties who have an interest in neuroradiology or may see patients with CNS infections.
Check out this video and additional content on http://www.learnneuroradiology.com
Видео Intracranial infections - 3 - Focal Infections канала LearnNeuroradiology
Показать
Комментарии отсутствуют
Информация о видео
Другие видео канала
Intracranial infections - 4 - ImmunocompromiseNeuroradiology board review 3 case 8Brain Scans: Lord of the Ring Enhancing Lesions 101Encephalitis (“Brain Inflammation”) Signs and Symptoms (& Why They Occur)How to read a CT angiogram (CTA) of the Head and NeckBrain Imaging, Crash CourseEtiological diagnosis of brain abscessCT Abscesses post C-SectionIntracranial infections - 1 - General principlesImaging CNS autoimmune and inflammatory disease - 4 - Spine inflammatory diseaseCT (computed tomography) face radiology search pattern46. Brain abscessIntracranial infections - 2 - Diffuse InfectionsHuman Brain Connectivity (DTI) - 20 year old femaleMultiple sclerosis – white spots and red flags - part 1 - Making a diagnosisImaging intracranial hemorrhage - Case 3 - PRES - posterior reversible encephalopathy syndromeVascular Imaging of the Head and Neck - Case BImaging CNS autoimmune and inflammatory disease - 2 - EncephalitisVascular Imaging of the Head and Neck - Case CBrain MRI sequences 101