Reviewing Delusional Misidentification Syndromes with Examples

Abstract

Delusional misidentification syndrome is characterized by individuals perceiving familiar people, places, and objects as different entities, often associated with delusional disorders. These disorders are typically linked to abnormalities in cognitive processes, resulting in incongruent and unalterable beliefs. The loss of familiarity is believed to be the consequence leading to the emergence of these disorders. While commonly associated with psychiatric illnesses, they are also frequently observed in conjunction with neurodegenerative diseases. Diagnosis is primarily established through clinical evaluation. However, cases of these syndromes pose a significant burden on caregivers. Therefore, it is crucial not to overlook the possibility of dementia in these syndromes. This consideration is vital for providing appropriate support and treatment to patients and their families. This case report aimed to provide a detailed examination of this topic by presenting five cases.