Open AccessLow-grade Appendiceal Mucinous Neoplasm and Endometriosis: Incidental Coincident Pathologies at Cesarean Section
Author(s) -
Nathaniel Yohannes,
Jaclyn C Watkins,
Amy G. Weeks,
Sarah S. Osmundson,
Chanjuan Shi,
Alexandra E. Kovach
Publication year - 2019
Publication title -
international journal of gynecological pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.925
H-Index - 77
eISSN - 1538-7151
pISSN - 0277-1691
DOI - 10.1097/pgp.0000000000000630
Subject(s) - appendix , medicine , endometriosis , occult , pathology , mucinous cystadenoma , mucinous carcinoma , decidualization , appendicitis , radiology , adenocarcinoma , general surgery , cancer , stromal cell , ovary , paleontology , biology , alternative medicine
Incidental pathologic findings at the time of Cesarean section are exceedingly uncommon. Similarly, occult low-grade appendiceal mucinous neoplasms and other noninflammatory, non-neoplastic appendiceal pathologies are rare, although appendiceal neoplasia, most commonly well-differentiated neuroendocrine tumors, may be found during evaluation of acute appendicitis. Here we report the first case of incidental coincident low-grade appendiceal mucinous tumor and endometriosis involving the appendix at the time of Cesarean section. We highlight pitfalls in the histopathologic evaluation of these processes, particularly given the setting of decidualization of ectopic endometrial stroma, as well as the prognostic implications of low-grade appendiceal mucinous tumors to emphasize the importance of clinicopathologic correlation and careful intraoperative examination of the appendix and other visible structures during Cesarean section.