Coincidence of active Crohn's disease and florid endometriosis in the terminal ileum: A case report

Figure 3 Immunohistochemical characterization of florid intestinal endometriosis and Crohn’s disease. The intramural glandular structures (arrows in A-F) are positive for keratin 7 (A), CD10 (B), and progesterone receptor (C), but negative for keratin 20 (D) and CDX2 (E) which is vice versa to the mucosal staining; Strong anti-CD45 immunostaining illustrates severe lymphoid hyperplasia in CD (F). A-F: To illustrate immunostainings in detail always the intramural gland designated by a red arrow is shown in insets (original magnification: × 10; inset: × 250).