Eosinophilic solid and cystic renal cell carcinoma with aggressive behavior: Two case reports

Figure 2 Images of hematoxylin and eosin staining and immunostaining in case 2. A: Tumor cells were arranged in an acinar-like, microcyst, and pseudo-papillary pattern, and cells lining septa had a hobnail morphology; B: The cells exhibited a voluminous eosinophilic cytoplasm with various sizes of basophilic granular stippling; C: Immunohistochemical staining for CK20.