Microscopic Characteristics
Specimen A and B present with similar microscopic findings- The lesion consisted of an intradermal nodule composed of clear cells in a glandular configuration with a prominent vascular stroma. Multiple erythrocytes were noted (Figure 3 ). Pancytokeratin, vimentin, and EMA stains were positive (Figure 4 ). CD10 was focally positive. These findings were consistent with a diagnosis of metastatic renal cell carcinoma.