3984
Testicular histology revealed pathologies such as scarce intermediate stages of spermatogenesis , release of immature germ cells into the lobular lumen , presence of foam cells and interstitial fibrosis .
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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