2270
The interleukin ( IL ) 2 - and beta ( 2 ) - microglobulin ( beta ( 2 ) m ) - deficient ( IL - 2 ( null ) x beta ( 2 ) m ( null ) ) mice spontaneously develop colon cancer in the setting of chronic UC .
 colon cancer
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Anatomy 
Text: {0} 
Answer:
 colon cancer