There's also a rather fascinating case where a woman had voices telling her she had a brain tumor and the voices were correct. http://www.bmj.com/content/315/7

There's also a rather fascinating case where a woman had voices telling her she had a brain tumor and the voices were correct. http://www.bmj.com/content/315/7123/1685 http://www.bmj.com/content/315/7123/1685 PDF available from the NIH, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2128009/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2128009/ , starts on pdf page 17/document page 1685.