Figure 1.

A. Infiltrative endometrioid adenocarcinoma of the ileum (hematoxylin-eosin stain, 100×). B. Cytokeratin 20 immunostaining negative (100×). C. Cytokeratin 7 immunostaining positive (100×). D. Cecum intraparietal benign endometriosis (hematoxylin-eosin stain, 100×).

Marchena-Gomez et al. World Journal of Surgical Oncology 2006 4:93   doi:10.1186/1477-7819-4-93
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