420 Diseases of the Genital Organs 



ries function normally. In one heifer which had aborted at 

 six months and five or six months later had not been seen in 

 estrum, I dislodged a corpus luteum fully two inches in di- 

 ameter, which immediately reformed in the old crater. I 

 dislodged it a second time, about fifteen days later, after 

 which the animal came in estrum and conceived at the first 

 service. 



p IG 135— Adherent Ovary with Very Large Cystic Corpus Luteum. 



/, Apex of cornu ; 2, gelatinized cyst fluid ; ,,\ thin layer of lutein tissue ; 



/, hematoma displacing lutein tissue. Lutein tissue and 



old blood clot alternate about periphery of cyst 



The dislodgment of the hypertrophied corpus luteum 

 should preferably be accomplished by compression from the 

 vagina. Frequently it is so difficult to dislodge that, if the 

 operation is attempted per rectum, there is danger of in- 

 jury. Moreover, there is always danger that hemorrhage 

 may follow or that the dislodgment may be incomplete. It 

 is then best to pass one hand into the rectum, bring the ovary 

 back over the vagina, grasp it with the other hand through 



