86 
Plate V a 
Portion of ileum showing- leech-like subperitoneal cyst 
Longitudinal section. In the degenerated haemorrhagic 
contents two sections of a worm are lying. Note the 
collection of leucocytes around the inside of the wall of the 
cyst and the leucocytic infiltration of the walls. In the 
internal muscular coat is a small cyst. The leucocytic 
infiltration is extensive and extends into the submucosa. 
