Retroperitoneal fibrosis (RPF) is a rare disease characterized by the presence of fibroinflammatory tissue around the abdominal aorta and ureteral entrapment in most cases. Idiopathic RPF is frequently reported in association with autoimmune diseases; however, there have been few reports of idiopathic RPF associated with Hashimoto's thyroiditis. Here, we report a case of idiopathic RPF with Has...

Contrast material enhancement for cross-sectional imaging has been used since the mid 1970s for computed tomography and the mid 1980s for magnetic resonance imaging. Knowledge of the patterns and mechanisms of contrast enhancement facilitate radiologic differential diagnosis. Brain and spinal cord enhancement is related to both intravascular and extravascular contrast material. Extraaxial enhan...

balo's concentric multiple scleroses (ms) is a rare demyelinating disease and a variant of multiple sclerosis. we report a case with interesting misleading clinical history and typical ri findings of balo disease. a 19-year-old girl presented with fever and left hemiparesis following dental procedure 15 days ago. on physical examination fever and left limbs forces loss were noted. on ct scan a ...