DTI studies suggest that PCA adversely affects WM tract integrity in the posterior brain regions. In brain tissue, atrophy describes a loss of neurons and the connections between them. Normal pressure hydrocephalus (NPH) has received substantial attention as a reversible cause of dementia. A, Noncontrast CT shows dense calcifi­ cations in the basal ganglia and smaller but also dense calcifications in the frontal white matter. 37 Full PDFs related to this paper. Although, as the name suggests, the frontal and temporal lobes are predominantly affected, depending on the genetic and clinical phenotype, individuals demonstrate very variable regional atrophy. As a general rule the following dominant patterns of regional loss are demonstrated 8:  behavioral variant FTD: bilateral frontal lobes cortical/subcortical tubers: 50% are in the frontal lobe; high T2 and low T1 with only 10% of tubers showing enhancement; frequently calcify after two years of age; subependymal hamartomas. Right hepatic vein divides the right lobe into anterior and posterior segments. Superficially, the superior, middle and inferior temporal gyri (a, b, c respectively) comprise the temporal lobe.The sylvian fissure (arrow) demarcates the border with the frontal lobe.The primary auditory cortex is located in the transverse temporal gyrus (of Heschl) (d).The parahippocampal gyrus and hippocampus … Talk to our Chatbot to narrow down your search. Bilateral temporal lobe hyperintensity (BTH) is a commonly encountered MRI finding in a wide spectrum of clinical conditions and often poses a diagnostic challenge to the radiologist. Seven normal 6 – 12-year-old subjects served as controls. Home Page: Journal of Clinical Neuroscience

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