Table 16.17-1. Secondary causes for psychosis

Autoimmune

SLE, anti-NMDA receptor encephalitis

Endocrine and metabolic

Hyperthyroidism/hypothyroidism, hyperthyroidism/hypoparathyroidism, hypercalcemia, vitamin B12 deficiency, Wilson disease, hepatic and uremic encephalopathy

Infectious

HIV, syphilis

Neurodegenerative

Parkinson disease, Lewy body dementia, Alzheimer disease, Huntington disease

Neurologic

Stroke, hemorrhage, space-occupying lesion, temporal lobe epilepsy, multiple sclerosis

HIV, human immunodeficiency virus; NMDA, N-methyl-D-aspartate; SLE, systemic lupus erythematosus.