Figure 3From: Immunohistochemical analysis of undifferentiated and poorly-differentiated head and neck malignancies at a tertiary hospital in NigeriaPhotomicrographs showing the immunohistochemical profile of a rhabdomyosarcoma including the haematoxylin and eosin (H&E) slide which displays sheets of pleomorphic and polymorphic cells which have hyperchromatic nuclei. There is strong immunopositivity for myogenin (MYO), moderate positivity for vimentin (VIM) and equivocal staining with desmin (DES) and neurone specific enolase (NSE). There is also negativity for epithelial markers (AE1 and AE3) and leukocyte common antigen (LCA). All immunohistochemical sections were counterstained with hematoxylin. (X400)Back to article page