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Figure 2 | Diagnostic Pathology

Figure 2

From: Medullary colon cancer presenting with total necrosis of all regional lymph node metastases: morphologic description of a presumed immune-mediated event

Figure 2

Histology of the lymph node metastases. a, b and c) Several lymph nodes showing necrotic metastases surrounded by granulomatous inflammation. Viable tumor cells are completely absent. d) Pancytokeratin positivity of the necrotic tumor cells within one of the lymph nodes. e and f) High power views of lymph nodes with necrotic tumor and associated granulomatous inflammation. Viable tumor cells are completely absent. g) High power view of necrotic tumor within lymph node. Viable tumor cells are completely absent.

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