Figure 1.

A – Tumor cells with clear cytoplasm, large atypical nuclei, conspicuous nucleoli (A1 – MGG; ×400; A2 – PAP; ×400). B – Cellblock section. Prominent vascular pattern (H&E; ×100). C – Cell block. Immunoreactivity for AE1/AE3 (×400). D – Cell block. Immunoreactivity for vimentin (×400). E – Cell block. Negative immunostain for TTF1 (×400). F – Cell block. Strong surface membrane staining for CD10 (×400).