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. Author manuscript; available in PMC: 2015 Sep 1.
Published in final edited form as: Inflamm Bowel Dis. 2014 Sep;20(9):1530–1547. doi: 10.1097/MIB.0000000000000144

Fig. 7.

Fig. 7

Double immunofluorescent staining for hemoglobin-α (red) and the macrophage marker CD163 (green) in paraffin-embedded sections from a patient with UC. Nuclei were counterstained with DAPI (blue): red arrows indicate extravasated erythrocytes and white arrows indicate macrophages. Pictures were taken at 60× (A) and 20× (B) magnification. A) Depicts macrophage erythrophagocytosis: a macrophage (yellow arrow) engulfed three red blood cells from extravasated erythrocytes (red arrow). B) Colonic mucosa with extravasated erythrocytes and macrophages in close vicinity to crypts.