323868
Clinical significance A Hürthle cell adenoma is a type of thyroid benign tumor that , in rare cases , has the potential to become malignant and metastasize ( Hürthle cell carcinoma ) .
 Hürthle, Hürthle
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Hürthle, Hürthle