xii, B, 3 Manlove: Balantidial Colitis 163 



condition was detected only on routine examination and was un- 

 important from the clinical standpoint. 



3. Balantidiasis is relatively unimportant as a cause of death 

 in the Philippines, but may cause considerable morbidity. 



4. As in amcebiasis, extensive intestinal lesions in balanti- 

 diasis may be present without giving rise to symptoms. 



5. The intestinal lesions in balantidiasis vary from a simple 

 catarrh to deep ulceration. They are characterized by abundant 

 organisms in the intestinal wall with some inflammatory mani- 

 festation and by a burrowing necrosis of the submucosa, which 

 is similar to the amoebic lesion. All parts of the colon may 

 be involved. An etiologic diagnosis can only be made by finding 

 the protozoa. Eosinophilia in sections of the intestine has not 

 been prominent in these cases, although it has been emphasized 

 by previous authors. 



REFERENCES 



(1) Bowman, F. B. A case of dysentery caused by Balantidium coli with 



coincident filarial infarction of the spleen. Phil. Joum. Sci,, Sec. B 

 (1911), 6, 147-152. 

 Idem. Two cases of Balantidium coli infection. Phil. Joum. Sci., 

 Sec. B (1909), 4, 417-423. 



(2) SOLOWJEW, N. Das Balantidium coli als Erreger chronischer Durch- 



falle. Centralbl. f. Bakt. etc., 1. Abt. (1901), 29, 821, 849. Cited 

 by Strong (3). 



(3) Strong, R. P. The clinical and pathological significance of Balantidium 



coli. Pub. Bur. Govt. Labs., Manila (1904), No. 26, 1-77. 



(4) Walker, Ernest Linwood. Experimental balantidiasis. Phil. Joum. 



Sci., Sec. B (1913), 8, 333-351. 



(5) Willets, D. G. General conditions aflFecting the public health and 



diseases prevalent in the Batanes Islands, P. I. Phil. Joum. Set., 

 Sec. B (1913), 8, 49-58. 



149174 i 



