Correlation between Immunohistochemical and Histomorphological Features of Ampullary Carcinomas: A Study on 72 Cases from a Tertiary Health Care Center

Figure 1

(a) Pancreatobiliary-type carcinoma with a tubular pattern (hematoxylin-eosin, 40x). (b) Pancreatobiliary-type carcinoma with marked nuclear atypia (hematoxylin-eosin, 400x). (c) Pancreatobiliary-type carcinoma with desmoplasia (hematoxylin-eosin, 100x). (d) Pancreatobiliary-type carcinoma with CK7 positivity (immunohistochemistry, 400x). (e) Pancreatobiliary-type carcinoma with CK20 negativity (immunohistochemistry, 100x).

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