JPA: My Space Tumor

Juvenile Pilocytic Astrocytoma. I guess the cells are star-shaped, which is why it sounds like it should be living in outer space or something. Since it had probably been inside me since I was a kid, they considered my type of tumor to be juvenile (there are regular pilocytic astrocytomas, too). For a lot of people, these tumors can manifest themselves and start causing problems when children are very young. Mine didn't, for some reason. One of the mysteries of life.

Here's a link to more info, with a bunch of medical jargon thrown in.