176 DISEASE IN WILD MAMMALS AND BIRDS 
True peptic ulcers have been found in Primates, 4; 
Carnivora, 5; Pinnipedia, 2; Insectivora, Ungulata and 
Hyraces each one. The London Garden reports that gas- 
tric ulcerations occur most often in Carnivora and 
Marsupialia. Those in the last three orders of our list 
were small, usually multiple and relatively superficial. 
The ulcers found in Primates and Carnivora present the 
usual pictures seen in man. In one example in each of 
these orders radiating scars of healed defects are men- 
tioned in the notes. None of them seems to have led to 
cancer, and in only one, a wolf (Canis lupus), was the scar 
tissue sufficient to cause definite impediment to the motil- 
ity of the stomach. Six of the fourteen examples 
appeared on the greater curvature, the remainder on the 
lesser. Ten ulcers were in the pyloric division, the other 
four being scattered. No other pathology is found com- 
mon to these cases which might be dra^vn into etiologi- 
cal association. 
Tumors. 
Tumors of the gastric complex are not at all common, 
there being only the follo^^'ing to report: Primates, 
Hamadryas Baboon {Papio liamadryas), diffuse ade- 
noma; (none in Carnivora mth the most ulcers); Mar- 
supialia, Red Kangaroo {Macropus rufus), malignant 
papilloma with metastases. The former tumor, shown in 
Fig. 17, was a diffuse soft excrescence beginning near the 
pylorus and stretching along the lesser curvature toward 
the cardia. Histologically it was made up of glandular 
acini growing in all directions but always maintaining 
normal relations of cells and basement membrane. There 
were no metastases and other reasons for death existed. 
The tumor of the kangaroo stomach was a true epithelio- 
matous cancer with metastases to liver, spleen, and kid- 
ney. Only one secondary tumor was observed, from a 
carcinoma of the lung in a Red Kangaroo {Macro- 
pus rufus). 
