Benign Tumors of the Genital Organs 253 



My second clinical case was in an aged Guernsey cow. 

 The ovary was about five or six inches in diameter, spheri- 

 cal, tense, and smooth. It was diagnosed as a thick-walled 

 cyst of the non-nymphomaniac type. It was considered both 

 impossible and imprudent to rupture the cyst. Ovariotomy 

 was performed through a flank incision. Histologic exami- 

 nation showed the tumor to be a carcinoma. 



I have not observed clinically in other animals than the 

 cow an instance of malignant disease in the ovaries, and 

 have but one specimen of malign tumor of the ovary other 

 than those mentioned above. This is a multilocular ovarian 

 tumor from a sow, shown in Fig. 69. The sow weighed 

 about three hundred pounds, and the ovary thirty-eight. 

 Clinically it would have been difficult or impossible to diag- 

 nose. Inevitably the abdomen of the sow was greatly en- 

 larged, but that might have been from hydronephrosis or 

 many other conditions. In this fat sow, the discovery was 

 made after slaughter. 



Carcinoma of the vulva is not at all rare in the cow. It 

 presents highly distinctive clinical characters which render 

 a reliable diagnosis comparatively easy. When reported to 

 the veterinarian, it is not ordinarily subject to surgical in- 

 terference. 



As a rule, when the genital organs of a meat animal are 

 invaded by malignant new-growths, if they are still local- 

 ized, the general condition good, and the subject not of great 

 breeding value, the animal should be sent to slaughter. 



B. Benign Tumors of the Genital Organs 



1. Benign Tumors of the Male Genitalia 



Benign tumors are very common upon the penis, sheath, 

 and prepuce of horses and cattle. These two species are 

 very prone to growths of benign epithelial tumors, or 

 "warts", about the face and lips and upon the external geni- 

 tal organs. They are observed almost entirely in young 

 animals. Generally they are papillomatous in type and tend 

 to become polypoid or pedunculated. This is especially true 



