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Figure 2: Diff-Quik smear: Metastatic carcinoma, renal cell type showing clumps of malignant‑appearing cells with abundant clear cytoplasm, ×20. Atypical cells are immunoreactive for CD10, vimentin, and broad-spectrum cytokeratin, RCC. Inset: Higher magnification showing clear, vacuolated cytoplasm with large nuclei, prominent nucleoli typical of RCC (cell block, ×40)

Figure 2: Diff-Quik smear: Metastatic carcinoma, renal cell type showing clumps of malignant‑appearing cells with abundant clear cytoplasm, ×20. Atypical cells are immunoreactive for CD10, vimentin, and broad-spectrum cytokeratin, RCC. Inset: Higher magnification showing clear, vacuolated cytoplasm with large nuclei, prominent nucleoli typical of RCC (cell block, ×40)