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Tijdschrift voor Psychiatrie 62 (2020) 12, 1073 - 1079

Klinische Praktijk

Visual hallucinations, misidentification and reduplication of time: a sense of distorted reality due to a cerebral metastasis

D.M.C. Quadackers, B. Doornbos, D.C. Cath

We describe a 66-year-old female patient with no prior psychiatric history who presented with an unusual psychotic state, largely in accordance with Fregoli syndrome (misidentification of people). Further, the patient suffered from reduplication of time, scenic hallucinations and psychotic perceptions. Symptoms were the result of a brain metastasis originating from a lung carcinoma. We describe the performed (additional) diagnostics and discuss how to differentiate between organic and functional psychosis, as well as the given psychiatric treatment. Finally, potential pathophysiological explanations are discussed that might explain the (reduction of) symptoms in the patient.

keywords cerebral metastasis, illusionary perception, misidentification, psychosis, reduplication