DISEASES OF THE CONJUNCTIVA 85 



color, bleeds easily by friction, and is found usually in 

 the region of the caruncle. 



A cyst may arise as the result of an injury, or ''may 

 form from dilated blood-vessels or lymph-vessels, or 

 from the sac of a cysticercus cellulosse." A type of 

 cyst sometimes seen at the junction of the cornea is 

 called a dermoid cyst, and is always congenital (Fig. 22.) 



A lipoma, or fatty tumor, is a congenital growth, and 

 is seen under the conjunctiva, usually in the upper and 

 outer portion. 



A papilloma, or warty growth, is more frequently 

 seen springing from the margin of the conjunctiva and 



A granuloma, known commonly as "proud flesh," is 

 the result of traumatism, and usually springs from the 

 point of injury. It is often seen at the mouth of a sinus, 

 and should not be confounded with a pathologic growth. 

 It is simply an excess of healthy tissue and may be ex- 

 cised. 



The principal malignant tumors are the sarcomata 



and carcinomata. 



A sarcoma may grow from any point of the conjunc- 

 tiva, but usually the seat is near the margin of the cornea. 

 It bleeds easily because of its great vascularity, and is 

 often pigmented. 



A carcinoma, or cancer, is not infrequently seen in the 

 region of the above tumor. It becomes papillomatous in 

 its appearance and is devoid of pigment. In course of 



