Figure 3From: Ameboma: an unusual cause of gastrointestinal bleeding during severe leptospirosis Histological examination of rectal biopsy. The ulcerative lesion with nonspecific mucosal thickening together with blue oval structures (black arrow) with eccentric nuclei was suggestive of Entamoeba histolytica trophozoites. A: hematoxylin-eosin, × 20. B: hematoxylin-eosin, × 40.Back to article page