A case of mediastinal teratoma with CT and MRI correlation.

A case of mediastinal teratoma is described with emphasis on its magnetic resonance aspect. All the components of the mass were well defined. The major interest of magnetic resonance imaging in this case consisted in the good delineation of the pericardium and visualization of the absence of pericardial invasion.

[A case of multiple brain calcifications associated with hypoparathyroidism]. / Un cas de calcifications cérébrales multiples associées à une hypoparathyroïdie.

We report a case of extensive cerebral calcifications associated with hypoparathyroidism in a 82-year-old woman who has been thyroidectomized and received an antiepileptic treatment for 26 years after an episode of coma followed by confusion. We discuss the frequent confusion in terminology used for describing such cases, emphasizing the necessary distinction between Fahr's disease (extensive cerebral calcifications without abnormal phosphocalcium metabolism) and cerebral calcinosis associated with hypoparathyroidism.