[Memory symptom exaggeration in a patient with progressive multiple sclerosis outside any medico-legal context].

Résumé

INTRODUCTION: Memory symptom exaggeration or malingering in the forensic neuropsychological evaluation of well-documented brain pathology is seldom described. For some, documented neuropathology and malingering are considered to be mutually exclusive.CASE REPORT: We report an original clinical observation of an amnesic factitious disorder in a patient with progressive multiple sclerosis. This patient, who was seen for a routine comprehensive neuropsychological evaluation, demonstrated a severe memory encoding deficit in a classical standard episodic memory test. This amnesic syndrome was not in agreement with the neurological condition where deficits in retrieval memory processes are essentially observed. Moreover, his performance at two symptom validity tests fell below the admitted cut-off scores. In fact, the patient obtained an accuracy score of 3 (cut-score