Neuromyelitis optica spectrum disorder (NMOSD) and myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD) are common causes of optic neuritis, typically involving anti-aquaporin 4 (AQP4) and Myelin oligodendrocyte glycoprotein (MOG) antibodies. It is scarce for both AQP4 and MOG antibodies to be simultaneously positive. Although NMOSD and MOGAD share clinical features, they differ in symptoms, magnetic resonance imaging findings and outcomes. Both conditions are treated with steroids and immunoglobulins but exhibit distinct responses. We report a case of NMOSD which was double seropositive for AQP-4 and MOG antibodies.

Palinacousis is a rare auditory phenomenon characterized by the persistence of sounds beyond their actual duration. It has been associated with various brain conditions such as stroke, tumor, and seizure in the temporoparietal lobe. We present a case report of a 43-yearold man who developed palinacousis following cerebral venous thrombosis and seizure with lesions including the left auditory cortex. This case highlights the intriguing relationship between cerebral venous infarction, seizure, and the development of palinacousis in specific brain regions.