8022
Reactive lymphoid hyperplasia was found in 15 cases , 2 cases had angiofollicular lymphoid hyperplasia or Castleman ' s disease , atypical lymphoid hyperplasia suggestive of malignant lymphoma was observed in 3 cases , and malignant lymphoma was diagnosed in the remaining 4 cases .
 None
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 None