Figure 5From: Immunohistochemical analysis of undifferentiated and poorly-differentiated head and neck malignancies at a tertiary hospital in NigeriaPhotomicrographs are showing the immunohistochemical profile of a lymphoma including the haematoxylin and eosin (H&E) slide which shows some small blue round and spindle cells with indistinct cytoplasm. There is immunopositivity for leukocyte common antigen (LCA). All of the other immunohistochemical markers are negative. All immunohistochemical sections were counterstained with hematoxylin. (X400).Back to article page