136 POULTRY DISEASES 



for .their interest, rather than their utilitarian 

 value. 



Hematoma, Blood Tumors 



Oceassionally considerable hemorrhage takes 

 place in the ov-a as they are in process of forma- 

 tion. These fail to find their way into the oviduct 

 and become hematoma, or blood tumors. Fig. 43 

 illustrates one of these cases, natural size. The 

 sectioned surfaces of two of the tumors is shown. 



Exciting causes, like those that cause inflamma- 

 tion and congestion, are present. A rupture of a 

 small, congested vessel causes the clot. Ergot in 

 small quantities should be given to combat the con- 

 dition. 



Multiple Tumors of the Ovary 



One of the commonest of tumors consists of 

 yolks, or ova, which have formed, but failed to 

 enter the oviduct. Later these masses become 

 hard and irregular in shape, yellowish in color, 

 and consisting of dried (inspissated) yolks form- 

 ing concentric layers. Fig. 44 illustrates one of 

 these cases, natural size. 



Cystic Ovary 



Cystomas, or cysts, are found at times in the 

 ovaries. These cysts are apparently imperfectly 

 developed ova varying in size, and contain a color- 

 less liquid. They are attached to the ovarian mass 

 by pedicles. 



Sarcoma 



Sarcomas are a type of malignant tumors ; that 

 is, they spread much in the manner as cancers 

 (carcinoma). They are fatal in time. The flesh 

 of birds affected with sarcoma should not be eaten. 



A case of sarcoma was studied by the writer, in 



