lymphoma vs swelling

lymphoma

noun
  • A malignant tumor that arises in the lymph nodes or in other lymphoid tissue. 

swelling

noun
  • The state of being swollen. 

  • Anything swollen, especially any abnormally swollen part of the body. 

  • A rising, as of passion or anger. 

How often have the words lymphoma and swelling occurred in a corpus of books? (source: Google Ngram Viewer )