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Figure 2: (a) BMA of case 14 shows a solitary cluster of signet ring cells (Giemsa × 100); (b) BMB of the same case (H and E, ×100). Upper and lower right inset shows tumor cells are positive for MC (MC ×100) and CEA (IHC × 100). Lower left inset shows tumor cells are positive for CK 8 (IHC × 400); (c) BMA of case 10 shows sheet of pleomorphic cells (Giemsa × 400); (d) BMB of the same case shows malignant squamous islands along with clusters of pleomorphic cells arranged in glandular pattern (H and E, ×100). Upper and lower right inset shows tumor cells are positive for CK5/6 (IHC ×100) and CK8 (IHC ×400)

Figure 2: (a) BMA of case 14 shows a solitary cluster of signet ring cells (Giemsa × 100); (b) BMB of the same case (H and E, ×100). Upper and lower right inset shows tumor cells are positive for MC (MC ×100) and CEA (IHC × 100). Lower left inset shows tumor cells are positive for CK 8 (IHC × 400); (c) BMA of case 10 shows sheet of pleomorphic cells (Giemsa × 400); (d) BMB of the same case shows malignant squamous islands along with clusters of pleomorphic cells arranged in glandular pattern (H and E, ×100). Upper and lower right inset shows tumor cells are positive for CK5/6 (IHC ×100) and CK8 (IHC ×400)