Figure 3
From: Primary squamous cell of the thyroid–an abbreviated clinical presentation
Immunoperoxidase stains at 200X magnification. (A) Tumor cells positive for high molecular weight cytokeratin 5/6. (B) Tumor cells positive for cytokeratin 19. (C) Neoplastic nuclei positive for p63. (D) T-lymphocytes positive for CD5 labelling.