2002
DOI: 10.1046/j.1365-2559.2002.01313.x
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Primary endometrioid adenocarcinoma of the large intestine arising in colorectal endometriosis

Abstract: Endometrioid adenocarcinoma is a rare complication of colorectal endometriosis, this report contributing to a total of 25 cases in the literature. Definitive diagnosis, aided by immunohistochemical studies, is important to enable the identification of the optimal management for this uncommon condition.

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Cited by 75 publications
(36 citation statements)
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“…Extraovarian cancers arising in endometriosis were more likely to occur in postmenopausal women, to be the result of hormone replacement therapy, and occasionally to be accompanied by obesity. [11][12][13][14] All three of these factors were present in our patient. We therefore cannot exclude the possibility that the retroperitoneal tumor originated from an extraovarian endometriosis and progressed due to long-term stimulation by estrogen.…”
Section: Discussionsupporting
confidence: 52%
“…Extraovarian cancers arising in endometriosis were more likely to occur in postmenopausal women, to be the result of hormone replacement therapy, and occasionally to be accompanied by obesity. [11][12][13][14] All three of these factors were present in our patient. We therefore cannot exclude the possibility that the retroperitoneal tumor originated from an extraovarian endometriosis and progressed due to long-term stimulation by estrogen.…”
Section: Discussionsupporting
confidence: 52%
“…If the biopsy tissue is limited, a dual immunostain for CK7 and ER as described in our study may be used. Hyperplasia and carcinoma can arise from the existing endometriosis, 22,23 as two cases in our series had complex atypical hyperplasia, one with concurrent stromal atypia with increased cellularity, leading to a diagnosis of an evolving low-grade carcinosarcoma. Atypical stromal cells were present at the surgical resection margin.…”
Section: Discussionmentioning
confidence: 74%
“…Endometrioid adenocarcinoma or stromal sarcoma developed in endometriosis foci have been largely documented in literature [20][21][22]. In this setting, the endometrial glands are crowded and constituted of atypical cells carrying an irregular-shaped nucleus; in addition, the stromal cells may be less dense among the neoplastic glands.…”
Section: Discussionmentioning
confidence: 99%