In addition to the information I already knew, the report indicated my chest area included a triangular mass of thymic tissue, consistent with thymic
hyperplasia. I asked my doctor about it and he said it is common in children, but rae in adults my age ( I'm 50 ), and he said it ws nothing to worry about. Well....that is easier said than done. I'd like to know what is thymic hyperplasia, what causes it, and is it something to be concerned about ?