Inclusion criteria:  Adult patient (≥18 years old) COVID + patient presenting with neurological symptoms leading to an MRI. Patient taken care of in one of the care centers associated with this research Patient not having expressed his opposition, after information, to the reuse of his data for the purposes of this research.  Exclusion criteria:  Patient who expressed his opposition to participating in the study COVID patient not having neurological symptoms or not having received an MRI Patient under guardianship or guardianship Patient under legal protection