5249
Because clear cell papillary cystadenoma is similar to renal cell carcinoma histologically , and because both occur as components of the von Hippel - Lindau disease complex , the authors analyzed both cases for the presence of mutations in the VHL gene .
 papillary cystadenoma, renal cell carcinoma, von Hippel - Lindau disease, VHL
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Disease 
Text: {0} 
Answer:
 papillary cystadenoma, renal cell carcinoma, von Hippel - Lindau disease, VHL