Simple schizophrenia is a rarely used and controversial diagnosis. Here we report the case of a 54-year-old man with insidious changes in personality and behaviour, lacking perceptual abnormalities and delusions. He showed progressive inability in general functioning and self-care. He was diagnosed with simple schizophrenia and treated with antipsychotics, making a rapid and maintained recovery. We use this case to illustrate the continued relevance of the diagnosis, and highlight the risks of overlooking these patients, with significant consequences for their ability to function adequately in society.
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