[A rare lesion of the central nervous system: inflammatory pseudotumor]. / Une lésion rare du système nerveux central: la pseudotumeur inflammatoire.

Inflammatory pseudotumor is an uncommon tumor, initially described in the lung, but which can involve various organs. It is a controversial entity. We report the case of a 19-year-old-man with an inflammatory pseudotumor localized in the central nervous system, revealed by epilepsy. Characteristically, the inflammatory pseudotumor is an inflammatory mass leading to manifestations related to its localization. Relatively ubiquitous, this tumor is seldom described in the central nervous system. This uncommon lesion is part of a heterogeneous group of entities which are difficult to diagnose for both surgical pathologists and clinicians.