This is a long read, so to summarize:

A woman developed what we call schizophrenia. She hid it reasonably well, but eventually was hospitalized for it.

Later they found cancer. While treating the cancer, her schizophrenia "magically" disappeared. Seemingly for good.

The article points that this isn't a unique case, and that schizophrenia, as a "hopeless disease," doesn't get enough attention... And there's no real sub classification to determine what lead to a set of symptoms (which is the only current diagnostic criteria).

So the speculation is that autoimmune treatments might cure or help some forms of schizophrenia.

Read the full article if this story sounds interesting!