508 DISEASES OF THE EYELIDS 



Treatment.— The cyst should be opened, curetted, and the 

 cyst wall destroyed with tincture of iodin. 



Lipoma and Sebaceous Tumors in Birds.— These are fre- 

 quently observed in the different species of birds. The 

 tumors are well defined, of a firm consistency, and vary in 

 size from a pea to a walnut. On opening the tumor fatty 

 tissue may be seen, or which is more common, a yellowish, 

 cheesy, tough material enclosed in a distinct capsule is present. 

 They are situated immediately under the skin. From their 

 nature they are either lipomas or sebaceous cysts. Various 

 conditions are found. Sometimes the cysts will rupture, 

 discharging the material, while in other' cases horny growths 

 will partially replace the cyst. Very often a number of birds 

 in a flock will be affected. 



Treatment.— Incise the tumor, remove all the contents and 

 apply tincture of iodin to its base. Free hemorrhage may 

 occur after incision, which can be controlled by cauterizing 

 with silver nitrate. 



Enlargement of the Glands of Moll.— These small glands 

 are situated along the free margin of the eyelid, their ducts 

 emptying into the glands of the hair follicles. They are 

 enlarged commonly in older animals. The cysts are clear, 

 transparent, and varying in size from a wheat grain and 

 smaller. 



Treatment.— The contents of the cysts are discharged. 

 This is best done by crushing the small cyst with an artery 

 forceps. Iodin is then applied to destroy the gland and cyst 

 wall. 



Granulomas.— Resulting from wounds, granulomatous 

 tissue is often found developing on the free margin of the 

 lids, or on the surface. This is easily determined by its 

 general appearance. If there should be doubt a definite 

 diagnosis may be made with the microscope. 



Treatment.— Complete extirpation is indicated. Cauterize 

 the base of the tumefaction with silver nitrate, or actual 

 cautery. 



Malignant Neoplasms.— Several varieties of malignant 

 tumors have been found involving the eyelids of small animals. 



