Wernicke encephalopathy | Radiology Reference Article
网页2023年12月15日 · On imaging, it is commonly seen on MRI as areas of symmetrical increased T2/FLAIR signal involving the mammillary bodies, dorsomedial thalami, tectal plate, periaqueductal area and/or around the third ventricle.
Neuromyelitis optica spectrum disorder - Radiopaedia.org
网页2024年9月4日 · This accounts for some of the predilection for the circumventricular organs (e.g. periaqueductal grey matter) which are particularly rich in aquaporin-4 8. Early in the disease, demyelinating regions will demonstrate similar findings to multiple sclerosis, such as macrophage/microglia activation and axonal damage.
Symmetrical cerebral T2 hyperintensities - Radiopaedia.org
网页2023年3月26日 · the distribution tends to be symmetrical in periaqueductal grey matter, medulla, brainstem, midbrain, putamen (not always present, but characteristic), globus pallidus, heads of the caudate nucleus, substantia nigra, subthalamic nuclei and thalami
Periaqueductal gray matter | Radiology Case - Radiopaedia.org
网页Hattingh C, Periaqueductal gray matter. Case study, Radiopaedia.org (Accessed on 17 Nov 2023) https://doi.org/10.53347/rID-34471
Basal ganglia | Radiology Reference Article - Radiopaedia.org
网页2024年3月6日 · The basal ganglia are a group of grey matter nuclei in the deep aspects of the brain that is interconnected with the cerebral cortex, thalami and brainstem.
Leigh syndrome | Radiology Reference Article | Radiopaedia.org
网页Leigh syndrome, also known as subacute necrotizing encephalomyelopathy (SNEM), is a mitochondrial disorder characterized by progressive neurodegeneration, mitochondrial dysfunction, and bilateral central nervous system lesions, that invariably leads to death, usually in childhood.
Bithalamic lesions | Radiology Reference Article | Radiopaedia.org
网页The assessment and differential approach can utilize radiological markers such as MR signal characteristics, calcifications, precise position within the thalamus, symmetry/asymmetry, the presence of concurrent extra-thalamic lesions, and the existence of expansion 6.
Terminal zones of myelination | Radiology Reference Article ...
网页2021年7月3日 · Differentiation between these lesions and periventricular leukomalacia (PVL) is important as the terminal zone has no clinical relevance. Detection of normally myelinated low T2 signal white matter in-between the high signal patches and the lateral ventricle favors the diagnosis of terminal zone.
Mammillary bodies | Radiology Reference Article - Radiopaedia.org
网页2021年10月10日 · Gross anatomy. The mammillary bodies are round, paired structures that are a relay in the Papez circuit and lie in the inferior hypothalamus. They are separated in the midline by the intermammillary sulcus.
Midbrain | Radiology Reference Article | Radiopaedia.org
网页2024年6月28日 · The midbrain, or mesencephalon (plural: mesencephala or mesencephalons), is the most rostral part of the brainstem and sits above the pons and is adjoined rostrally to the thalamus. During development, the midbrain forms from the middle of three vesicles that arise from the neural tube.