Case 27. 
 Schistosomiasis japonica accompanying appendicitis (68 y-o F)
　 　 　 　 　
　 　 Acute appendicitis resected from a Mishima resident (southern part of Mt. Fuji) 　 　
　 　 　 　 　
　 　
Key words : Schistosoma japonicum, acute appendicitis, pseudotubercle
 　 　
　 　 　
　
　 　 　
Numbers of ova are seen in the ulcerated and inflamed appendiceal wall (HE, low power). 　 Most of the ova are calcified, indicating a remote infestation (HE, high power).
　 　 　
　
　 　 　
Reference case 27A
Schistosomiasis japonica in a Kofu resident (northern part of Mt. Fuji).　Colonic biopsy reveals lamina proprial occurrence of distorted ova (HE).		 　 Reference case 27A
Schistosomiasis japonica in a Kofu resident (northern part of Mt. Fuji).　The ovum is acid-fast, a distinguishable feature of Schistosoma japonicum ova (Ziehl-Neelsen).
　 　 　
　 　
　 　 　
Reference case 27A
Schistosomiasis japonica in a Kofu resident (northern part of Mt. Fuji).　The 1:500 diluted patient's own serum specifically reacts with the ovum (indirect immunoperoxidase).