TUBERCULOUS VISCERAL LESIONS IN PARROTS. 



563 



Case 24. Parrot suffering from tuberculous patches on the 

 tongue. 



4. Visceral Lesions. 



Case 25. Parrot which had been ill for the previous eight months. 

 Tuberculous hardened growth on the right side of the head ; tuber- 

 culous swelling on the left wing ; hardened growth, about three quarters 

 of an inch in length, on the extremity of the rump. Feet deformed 

 and contorted ; the bird had difficulty in holding on its perch. It died 

 a month later. 



Autopsy. — -The liver and spleen were crammed with tuberculous 

 granulations ; both legs showed deep-seated lesions of the bones, articu- 

 lations, periosseous and periarticular tissues. 



Case 26 (Autopsy). Tuberculosis of the tongue, larynx, lungs, and 

 liver. The lesions were similar to those usually noted in the Gallinacese. 

 Two tuberculous spots in the muscles of the thigh and leg ; tuberculosis 

 of the tarsal joints ; some cutaneous tubercles. 



Case 27 (Autopsy). Tuberculosis of the tongue and nasal cavities, 

 lungs and liver ; a tuberculous spot in the muscles of the left foot. 



The above cases show that the lesions are almost always of so 



Fig. 78. — Horny growth developed on a tuberculous patch on 

 the cheek (Eberlein-Krampf). 



special a character as to have rendered it impossible to detect their 

 nature before the introduction of bacteriological methods. These 

 cutaneous manifestations differ entirely from the lesions seen in other 

 animals, and can only be compared to certain forms of verrucous lupus. 

 In general the first sign is furnished by the falling of the feathers. 

 The skin then becomes thickened and verrucous, after which the 

 growths develop and are covered with thick crusts. These hardened 



