French ones, anyway: http://www.thelancet.com/journals/lancet/article/PIIS0140-6736(07)61127-1/fulltext
Perhaps I should explain this a bit more. It is a case report about a man who although he lives a normal life and holds down a job as a French civil servant, has enormously less brain tissue than most people. Most of his head is filled with fluid. He is not particularly intelligent, but he is not mentally handicapped.
I think this may be the first such a case has been properly reported in the scientific literature. There was the case of the British math student (of well above average intelligence this time) with a similarly compressed brain that got some publicity 30 years or so ago, but I do not think a proper clinical description was published.
…just a good loud voice.
–Dr. Edward Morbius, Altair 4