C19orf12 gene mutation with neuropsychiatric symptoms: a case report.

Neurodegeneration with brain iron accumulation (NBIA) is a genetic disorder characterized by iron accumulation in the basal ganglia. Patients may develop behavioral abnormalities, dementia, movement disorders, and neuropsychiatric symptoms such as emotional lability, depression, anxiety, hallucinations, impulsivity, obsessions, and hyperactivity. In this case, a 46-year-old male patient with a C19orf12 mutation experienced depressive complaints before movement disorders, followed by cognitive deficits and psychotic symptoms as the disease progressed. The patient's response to quetiapine treatment is crucial for managing neuropsychiatric symptoms. This case could contribute to the literature on presentation, differential diagnosis, and management of neuropsychiatric symptoms in rare NBIA patients.