Figure 1.

Cytoplasmic and nuclear immunoexpression of Id 1-3 in adenocarcinoma (a,b,c). Low expression of cytoplasm Id 1-3 (d,e,f). Intermediate expression of cytoplasmic Id1-3 (g,h,i). High expression of cytoplasmic Id1-3 note the absence signal for Id-1, Id-2, and Id-3 in tumor stroma. (j, k, l) Nuclear expression of Id-1, Id-2, and Id-3. Arrowheads indicate cytoplasmic and nuclear expression of adenocarcinoma cells; asterisks indicate stromal tissue. Bar 50 µm. (A color version of this figure is available in the online journal.)