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  Indian J Med Microbiol
 

Figure 2: The tumor cells were immunopositive for pancytokeratin (PANCK) (a), CK-7 (b), immunonegative for CK20 [positive control - normal intestinal epithelium in left upper corner] (c). Ki-67 shows approximately > 80% proliferative activity (d). The tumor cells are immunonegative for neuroendocrine markers such as synaptophysin (e) and CD56 (f), along with CDX-2 (g) and desmin (h)

Figure 2: The tumor cells were immunopositive for pancytokeratin (PANCK) (a), CK-7 (b), immunonegative for CK20 [positive control - normal intestinal epithelium in left upper corner] (c). Ki-67 shows approximately > 80% proliferative activity (d). The tumor cells are immunonegative for neuroendocrine markers such as synaptophysin (e) and CD56 (f), along with CDX-2 (g) and desmin (h)