Figure 1

HSP60 positivity in carcinoma (arrow) but not in normal tissues (arrowhead) in specimens from both well differentiated (a) and poorly differentiated (b) tumours (Magnification: 10×). A higher magnification (40×) shows that the positivity is diffuse into cytoplasm of tumoral cells of both G1 (c) and G3 (d) specimens; few positive interstitial (inflammatory) cells were scattered in the interposed stroma. HSP10 is also diffusely expressed by tumoral cells of both G1 (e) and G3 (f) LBC (Magnification: 10×). A higher magnification (40×) of both G1 (g) and G3 (h) shows that the positivity is mainly localised in the cytoplasm of neoplastic elements.