Fallopian Tube Mucosal Involvement in Cervical Gastric-type Adenocarcinomas: Report of a Series With Discussion of the Distinction From Synchronous In Situ Tubal Lesions

Cervical gastric-type adenocarcinomas are aggressive non–human papillomavirus-related carcinomas with a propensity for extracervical spread, including unusual sites such as the omentum, peritoneum, and ovary. We report 7 cases of cervical gastric-type adenocarcinoma with fallopian tube involvement predominantly in the form of mucosal colonization without underlying invasion. As far as we are aware, this has not been previously described and this report adds to the literature regarding metastatic neoplasms, which may exhibit tubal mucosal involvement and mimic an in situ lesion at this site. In all cases, there was associated ovarian involvement and in 6 of 7 cases, there was endometrial colonization. We speculate that the fallopian tube (and ovarian) involvement is secondary to transuterine spread. Given the occasional occurrence of multifocal gastric-type glandular lesions (benign or malignant) involving different sites in the female genital tract, we discuss the distinction between synchronous independent and metastatic lesions. Conflicts of Interest and Source of Funding: The authors have disclosed that they have no significant relationships with, or financial interest in, any commercial companies pertaining to this article. Correspondence: W. Glenn McCluggage, FRCPath, Department of Pathology, Belfast Health and Social Care Trust, Grosvenor Road, Belfast BT12 6BA, UK (e-mail: glenn.mccluggage@belfasttrust.hscni.net). Copyright © 2018 Wolters Kluwer Health, Inc. All rights reserved.

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