Gastroenterology Research, ISSN 1918-2805 print, 1918-2813 online, Open Access
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Case Report

Volume 2, Number 6, December 2009, pages 353-355

Endometriosis of the Vermiform Appendix Presenting as a Tumor


Figure 1.
Figure 1. (a) Gross features. A tumor measuring 3 x 3 x 3 cm is recognized in the appendiceal orifice. (b) Low power view of the histology. Endometrial glands and stroma is scattered. HE, x 40. (c) High power view of the histology. The endometrial glands and stroma are evident. HE, x 200. (d) Estrogen receptor is expressed in the endometrial glands. Immunostaining, x 200. (e) Lymph node histology. Glandular structures of endometriosis or Mullerian duct remnants are recognized.