318 DISEASES OF THE MAMMARY GLANDS 



Symptoms.— Fibromas occur as hard, sharply defined 

 enlargements which show no inflammatory symptoms nor 

 tendency to degenerate. The size of the tumors varies from 

 a pea to several inches in diameter. When mixed with other 

 tumors, they are softer and take on some of their charac- 

 teristics. 



Prognosis. —Favorable. 



Treatment.— Extirpation of the gland. 



Lipoma.— Fatty tumor found in old bitches, especially in 

 those afflicted with obesity. 



Symptoms.— They are soft, well-defined tumors of the 

 gland. 



Prognosis.— Favorable. 



Treatment.— Removal of the gland is advisable. 



Malignant Tumors.— Carcinomata. — A very common form 

 of malignant growth found in the mammary gland. They 

 are frequently mixed tumors, appearing as adenocarcinoma, 

 fibrocarcinoma, etc. 



Symptoms. — Carcinomas are characterized by their growth, 

 slow at first but with sudden, rapid development, lobulated 

 appearance, and tendency to degeneration and abscess 

 formation. A small portion of the tumor should be examined 

 microscopically. 



Prognosis.— Unfavorable as they are apt to recur. 



Treatment.— Removal of the gland should be done as early 

 as possible. When metastasis has taken place, no treatment 

 is successful. 



Sarcomata.— Sarcomata occur usually in conjunction with 

 other varieties of tumor, as fibrosarcoma, adenosarcoma, etc. 



Symptoms.— Sarcomas develop rapidly with acute, inflam- 

 matory symptoms. 



Diagnosis.— A diagnosis can be made only by microscopical 

 examination. 



Treatment.— Same as for carcinoma. 



Other varieties of tumors which involve the mammary 

 glands are rare and of minor importance. 



