An unusual malformation of the vermiform appendix simulating endometriosis

L H Honoré, Louis H. Honoré
Diseases of the colon and rectum · 1979 · vol. 22(4) , pp. 262–266 · doi:10.1007/bf02586891 · PMID:467183 · W2326601285
article OA: closed CC0 ⤵ 1 in-corpus citation
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⚙ AI-generated summary by claude@2026-06, 2026-06-12 ⓘ

This paper describes a case of a 48-year-old woman whose appendix, suspected to be endometriosis, was surgically removed and found to have a structural disorganization of its wall with atypical tissue elements.

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Abstract

A 48-year-old nulliparous woman with a long history of pelvic endometriosis underwent a gynecologic operation, and a swollen and indurated appendix was removed because of suspected endometriosis. Pathologic examination revealed no endometriosis, but examination of the distal appendix showed structural disorganization of its entire wall, with lack of proper differentiation of its normal coats and irregular overgrowth of fibroadipose, fibromuscular, and neural elements. Differential diagnoses, including endometriosis, carcinoid tumor and neurofibromatosis, are discussed.

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Condition tags

endometriosis

MeSH descriptors

Appendiceal Neoplasms Appendix Endometriosis Appendiceal Neoplasms Appendix Appendix Diagnosis, Differential Endometriosis Endometriosis Endometriosis Female Humans Middle Aged Pelvic Neoplasms Pelvic Neoplasms Pelvic Neoplasms

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