Pope Francis embraced several people with severe skin disorders in Vatican City on Wednesday, and photos of him kissing the head of a disfigured man with neurofibromatosis have gone viral.
Neurofibromatosis is a rare genetic disorder that causes tumors — usually benign — to grow from the ends of nerves, and can cause severe disfiguration. Sometimes, the tumors can become cancerous, according to the National Institutes of Health. There are three types of neurofibromatosis: Type 1 causes skin changes, deformed bones, and begins in childhood. Meanwhile, type 2 can lead to hearing loss and poor balance. The last type, called Schwannomatosis, is the most severe and also the rarest, causing intense pain. There is no cure for neurofibromatosis, and it is a hereditary disease, and not contagious. Though surgery can sometimes be used to remove tumors, treatment for the disorder is quite limited. It can be both a physically and emotionally devastating disease.