Une tumeur du vagin à ne pas méconnaitre, l'adénocarcinome mésonephrique: à propos d'un cas et revue de la literature

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Abstract

L'adénocarcinome mésonéphrique du vagin est une tumeur maligne extrêmement rare avec uniquement trois cas publiés dans la littérature jusqu’à maintenant. Il dérive des reliquats embryonnaires des canaux mésonéphriques au niveau du vagin. Nous rapportons un cas d'adénocarcinome mésonéphrique du vagin survenant chez une femme de 50 ans, et révélé par une masse polyploïde du vagin. L'IRM a montré un envahissement du périnée et de la branche inférieure du pubis. L’étude anatomo-pathologique était en faveur d'un adénocarcinome mésonéphrique dont les cellules tumorales expriment la pancytokératine et le CD10. Elles ne sont pas marquées par les anticorps anti récepteurs ostrogéniques et progestatifs. La patiente a été adressée pour radiothérapie avant la prise en charge chirurgicale. Les auteurs soulignent à travers cette observation les aspects étiopathogéniques, histologiques et thérapeutiques de cette tumeur rare.

Most cited references 12

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Female adnexal tumor of probable Wolffian origin. A distinctive pathologic entity.

R E Scully, M Hassan Kariminejad (1973)

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Mesonephric adenocarcinomas of the uterine cervix: a study of 11 cases with immunohistochemical findings.

Eric S Silver, M Devouassoux-Shisheboran, T P Mezzetti … (2001)

Mesonephric adenocarcinoma is a rare variant of cervical carcinoma with relatively few, well-documented cases reported. We describe the clinicopathologic and immunohistochemical features of 11 examples of this neoplasm, which occurred in women between the ages of 35 and 72 years (mean, 52 years). Most (64%) patients had abnormal vaginal bleeding. Eight tumors were stage IB, and one each was stage IIB and IVB; in one, the stage was unknown. Microscopically, the carcinomas showed various morphologies, most commonly a small tubular pattern or a ductal pattern resembling endometrioid adenocarcinoma; one tumor had an associated malignant spindle cell component. Ten neoplasms were adjacent to hyperplastic mesonephric remnants. Follow-up in 10 cases showed six patients to be alive without evidence of recurrence after a mean of 4.8 years. The patients with stage IIB and IVB disease had local recurrences after 2.2 and 0.7 years and died of progressive disease at 3.2 and 0.8 years, respectively. In a patient with stage IB disease, a mediastinal metastasis and a malignant pleural effusion developed 5.6 years after diagnosis, and the patient died of disease at 6.2 years. Another patient with stage IB disease and a positive vaginal cuff margin that recurred locally after 1.7 years received chemotherapy and was alive and clinically free of disease at 2.5 years. Mesonephric adenocarcinomas were immunoreactive for epithelial markers (AE1/3; CK1, CAM 5.2, cytokeratin 7, and epithelial membrane antigen) (100%), calretinin (88%), vimentin (70%), androgen receptor (33%), and inhibin (30%, focal staining). No immunostaining was detected with cytokeratin 20, estrogen receptor, progesterone receptor, and monoclonal carcinoembryonic antigen. This staining profile is similar to that of mesonephric remnants and may be useful in the distinction of mesonephric carcinoma from mullerian endometrioid adenocarcinoma, with which it may be confused.

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Malignant mesonephric neoplasms of the uterine cervix. A report of eight cases, including four with a malignant spindle cell component.

Paul R Young, R E Scully, P Clement … (1995)

Eight mesonephric adenocarcinomas of the uterine cervix, four of which had a malignant spindle-cell component, occurred in women aged 34 to 71 (median 43, mean 54.5) years, bringing to 14 the number of cervical mesonephric carcinomas in the literature. The tumors with a malignant spindle-cell component ("malignant mesonephric mixed tumors") are, with one possible exception, the first reported examples at this site. The patients, almost all of whom presented with vaginal bleeding, underwent hysterectomy; five also had a pelvic lymph node dissection. The tumors were all stage IB, although microscopic lymph node metastases were found in two cases. Gross examination revealed an invasive cervical mass in each case. On microscopic examination, seven tumors were adjacent to mesonephric hyperplasia, which in five cases was florid and focally atypical; in the remaining case, occasional non-neoplastic mesonephric tubules were found only within the tumor. The adenocarcinomas typically exhibited a variety of patterns, including a ductal pattern resembling endometrioid adenocarcinoma, a small tubular pattern, a retiform pattern, a solid pattern, and a sex-cord-like pattern. These disparate patterns frequently caused diagnostic difficulty. The spindle-cell component generally resembled endometrial stromal sarcoma or a nonspecific spindle-cell sarcoma; one tumor also contained multiple foci of osteosarcoma and another, a single chondroid focus. Immunohistochemical staining for a variety of antigens failed to reveal a distinctive profile, although all the carcinomas were immunoreactive for vimentin. Follow-up in six cases revealed three patients to be alive without evidence of recurrence at postoperative intervals of 2 to 3 years. Recurrent tumor developed in a fourth patient 1 year after hysterectomy; she was treated with chemotherapy and was alive and free of disease at 2 years. Another patient had intra-abdominal recurrences (including liver metastases) at 9 and 11 years and was alive with tumor at 13 years. Death at 8.5 months in a final patient was probably due to an independent stage IIc ovarian clear-cell carcinoma. These and prior observations in the literature suggest that malignant mesonephric tumors of the cervix may be more indolent than their müllerian counterparts, from which they should be distinguished. Mesonephric carcinomas in this site should also be distinguished from florid mesonephric hyperplasia, with which they are usually associated.

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Author and article information

Journal

Journal ID (nlm-ta): Pan Afr Med J

Journal ID (iso-abbrev): Pan Afr Med J

Journal ID (publisher-id): PAMJ

Title: The Pan African Medical Journal

Publisher: The African Field Epidemiology Network

ISSN (Electronic): 1937-8688

Publication date (Electronic): 15 June 2015

Publication date Collection: 2015

Volume: 21

Electronic Location Identifier: 126

Affiliations

[1 ]Service d'Anatomie Pathologique, CHU Hassan II, Fès, Maroc

[2 ]Service de Gynécologie Obstétrique, CHU Hassan II, Fès, Maroc

Author notes

[& ]Corresponding author: Bennani Amal, Service d'Anatomie Pathologique, CHU Hassan II, Fès, Maroc

Article

Publisher ID: PAMJ-21-126

DOI: 10.11604/pamj.2015.21.126.5754

PMC ID: 4546720

SO-VID: d4a7b069-a090-4d59-bf67-fa9e9c09ab45

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The Pan African Medical Journal - ISSN 1937-8688. This is an Open Access article distributed under the terms of the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Une tumeur du vagin à ne pas méconnaitre, l'adénocarcinome mésonephrique: à propos d'un cas et revue de la literature Translated title: A tumor of the vagina not to overlook, the mesonephric adenocarcinoma: about a case report and review of literature

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Abstract

Most cited references 12

Female adnexal tumor of probable Wolffian origin. A distinctive pathologic entity.

Mesonephric adenocarcinomas of the uterine cervix: a study of 11 cases with immunohistochemical findings.

Malignant mesonephric neoplasms of the uterine cervix. A report of eight cases, including four with a malignant spindle cell component.

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