Simplify the following text for a Grade 12 native English-speaking person.
Original: There are many types of lymphoma , including Hodgkin 's lymphoma , the primary central nervous system lymphoma , the B-cell lymphoma , and the hepatosplenic lymphoma .
Simplified: Thomas Hodgkin published the first description of lymphoma in 1832 , specifically of the form named after him , Hodgkin 's lymphoma . Since then , many other forms of lymphoma have been described , grouped under several proposed classifications .