2750
In our case the development of the tumor at the posterior side of the prostate , the lack of PSA immunoreactivity and the presence of mucinous glands , sometimes " endocervical - like " , could suggest an origin from embryonic mullerian remnants in the prostatic utricle rather than urogenital sinus .
 GENE: PSA
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: PSA