2702
Although pyoderma gangrenosum ( PG ) is often associated with systemic diseases , it has not been reported in association with congenital complement deficiencies .
 pyoderma gangrenosum, PG, systemic diseases, congenital complement deficiencies
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease 
Text: {0} 
Answer:
 pyoderma gangrenosum, PG, systemic diseases, congenital complement deficiencies