Top 10 Rarest Diseases You've Never Heard Of

  • 7 years ago
There are some mystery diseases you may never have heard of. From Foreign Accent Syndrome, to the Tree Man Illness, to Hutchinson-Gilford Progeria Syndrome – which inspired “The Curious Case of Benjamin Button” – these are some of the strangest known medical conditions. WatchMojo counts down ten fascinating rare illnesses.