Figure 4
![Figure 4](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1757-1626-0002-0000006557/MediaObjects/13257_2009_Article_534_Fig4_HTML.jpg)
(A) H & E stained tissue from ulcer base from the resected specimen of colon; arrow indicates the area full of colonies of trophozoits of E. histolytica, (10× magnification). (B) Same area under high power (40× magnification); a colony of trophozoits of E. histolytica can be clearly seen, indicated by arrow.