11842
Thyroid nodules with macrocalcification were classified into 4 groups : smooth total ( eggshell ) calcification , smooth partial calcification , irregular calcification , and nodular calcification .
 None
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None