The Importance of Long-term Partner Observation in Cognitive Evaluation: A Very Early Creutzfeldt-Jakob Disease in a Patient with Mild Cognitive Impairment.

Although there is no cure for CJD today, early diagnosis is essential, mainly because of its potential infectivity and for future planning. Diagnosing sCJD in its early stages is difficult. However, taking into account the observations of not only the patient's history but also their longterm partners in cognitive evaluations will be helpful in making an early and accurate diagnosis.