Late diagnosis of systemic lupus erythematosus and antiphospholipid syndrome in an older woman with psychosis: a case report and review of the literature.

In older adults with first-time psychiatric manifestations, physical disorders such as systemic lupus erythematosus (SLE) and antiphospholipid syndrome (APS) must be considered, even in patients with cognitive dysfunction and/or dementia. Here, we describe the case of a 77-year-old woman with psychosis who was later diagnosed with SLE and APS.