echo produces a proton-density image that contrasts MS lesions (hyperintense) with the cerebrospinal fluid (hypointense), while the second echo produces an image in which MS lesions are clearly contrasted with normal brain tissue, while the cerebrospinal fluid and brain tissue contrast is diminished...
Autoimmune encephalitis is a relatively novel nosological entity characterized by an immune-mediated damage of the central nervous system. While originally described as a paraneoplastic inflammatory phenomenon affecting limbic structures, numerous instances of non-paraneoplastic pathogenesis, as well as extra-...
The relation of the hypointense vein (black arrow) with the demyelinating plaque is better depicted with the FLAIR* image, which is calculated as the prod- uct of the coregistered T2-FLAIR and SWI images. Lesion probability map obtained with brain MRI in a group of patients with multiple ...
On magnetic resonance imaging, aspergilloma is hypo intense in both sequences T1 and T2 because of the lack of water and the high content of proteins of the fungus ball (Gustafson and Bansberg, 2000). The cause of aspergillomas remains obscure, and the role of dental filling material is ...
A brain MRI, requested to characterize the suspected lesion con firmed the presence of a right temporal rounded cystic lesion (42x33x31 mm) which appeared hypointense in T1 and hyperintense in T2, with an inferior and lateral solid part (20 mm of maximum diameter) (Figure 2C– F(i)...
echo produces a proton-density image that contrasts MS lesions (hyperintense) with the cerebrospinal fluid (hypointense), while the second echo produces an image in which MS lesions are clearly contrasted with normal brain tissue, while the cerebrospinal fluid and brain tissue contrast is diminished...
The calcifying fibrous tumor (CFT) is a benign lesion occurring in various parts of the body [60,61]. Around one-tenth of CFTs are pleura-based; however, it is unclear whether they occur there as a result of spreading from different organs or as one of many primary tumor foci developing...