38 Surgical Diseases and Surgery of the Dog 



NEOPLASMS. 



The growths affecting the eyes, ears, alimentary and respira- 

 tory tracts, thyroid and lymphatic glands, are treated of under their 

 respective headings and only the more common ones which occur 

 in the skin and subjacent tissues will be described here. These con- 

 sist of papilloma, fibroma, hematoma, cutaneous horns, sarcoma, and 

 carcinoma. 



Papilloma- Warty growths occur about the head and neck, 

 principally in old animals, but not so plentifully as on the extremities. 

 Favorite seats are the vicinity of the eyelids and the nose. 



Symptoms and Diagnosis. They are sharply defined and some- 

 times pedunculate. In consistence, they may be soft or hard with a 

 smooth or slightly puckered surface. They are distinguishable from 

 malignant growths by their limited dimensions and slow rate of 

 growth. 



Treatment. Simple excision with curved scissors is sufficient, 

 but it is best always to cauterize the base with the actual cautery or 

 lunar caustic. 



Fibroma. These tumors are found about the ears and eyelids 

 and the cheeks. 



Symptoms and Diagnosis. Fibromata are always well demarked 

 and hard. They have their seat in the skin itself and with it are 

 mobile from the subjacent tissues, or they are situated subcutaneously 

 when of connective tissue origin. Occasionally they are pedunculate. 

 Treatment. The same as for Papilloma. 

 Hematoma. Contusion cysts occasionally occur as the result 

 of traumatism, usually a blow from a club or stone. One case re- 

 corded by Siedamgrotzky resulted from a bite. Rupture of vessels 

 taking place, there follows a condensation of connective tissue 

 around the extravasation, and the blood is either quickly absorbed 

 or undergoes organization and is more slowly absorbed, or it may 

 suppurate. Some cases seem to arise spontaneously and to have 

 communication with the veins, for if they are opened they continue 

 to bleed persistently. 



Symptoms and Diagnosis. Blood tumors are known by their 

 subcutaneous position and their painless, tense, or fluctuating char- 

 acter. In the upper part of the neck they require careful differentia- 

 tion from burrowing ranula and cystic goiter. Aspiration may be 

 resorted to in doubtful cases. 



