Evidence map›Paper›PMID 42723985›Full record

ArticleFrontiers in oncology2026

Müllerian clear cell carcinoma arising from sigmoid endometriosis with pericolic lymph node metastasis in the absence of adnexal disease: a case report.

Matteo Girlando, Jose Manuel Garcia, Caterina Ravaioli, Antonio De Leo, Francesco Mezzapesa, Pierandrea De Iaco, Anna Myriam Perrone

Abstract readCase Reports
In one paragraph

Article in Frontiers in oncology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors.

Matteo GirlandoDivision of Gynecologic Oncology, Scientific Institute for Research, Hospitalization and Care (IRCCS) Azienda Ospedaliero-Universitaria di Bologna Policlinico di Sant'Orsola, Bologna, Italy.
Jose Manuel GarciaDivision of Gynecologic Oncology, Scientific Institute for Research, Hospitalization and Care (IRCCS) Azienda Ospedaliero-Universitaria di Bologna Policlinico di Sant'Orsola, Bologna, Italy.
Caterina RavaioliDepartment of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Bologna, Italy.
Antonio De LeoDepartment of Medical and Surgical Sciences (DIMEC), University of Bologna, Bologna, Bologna, Italy.
Francesco MezzapesaDivision of Gynecologic Oncology, Scientific Institute for Research, Hospitalization and Care (IRCCS) Azienda Ospedaliero-Universitaria di Bologna Policlinico di Sant'Orsola, Bologna, Italy.
Pierandrea De IacoDivision of Gynecologic Oncology, Scientific Institute for Research, Hospitalization and Care (IRCCS) Azienda Ospedaliero-Universitaria di Bologna Policlinico di Sant'Orsola, Bologna, Italy.
Anna Myriam PerroneDivision of Gynecologic Oncology, Scientific Institute for Research, Hospitalization and Care (IRCCS) Azienda Ospedaliero-Universitaria di Bologna Policlinico di Sant'Orsola, Bologna, Italy.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Malignant transformation of endometriosis is rare and most commonly involves the ovary. Extraovarian transformation, particularly in the gastrointestinal tract, is exceptional, and clear cell carcinoma (CCC) arising from intestinal endometriosis is rarely reported. Case presentation: We report a 64-year-old postmenopausal woman with no prior history of endometriosis in whom a sigmoid lesion was incidentally detected during follow-up for a presumed benign ovarian cyst. Colonoscopic biopsy revealed a poorly differentiated carcinoma with clear cell features, and immunohistochemistry (PAX8+, CK7+, HNF1β+, CK20-) supported a Müllerian origin. The patient underwent complete cytoreductive surgery (R0). Final histology confirmed Müllerian clear cell carcinoma arising from sigmoid endometriosis with pericolic lymph node metastasis (pT3N1M0). Integration of the immunophenotypic profile (PAX8+, CK7+, HNF1β+, CK20-), and demonstration of adjacent endometriosis supported the diagnosis of Müllerian clear cell carcinoma arising from endometriosis, fulfilling the Sampson and Scott criteria. She received adjuvant carboplatin and paclitaxel and is disease-free at 6 months. Conclusion: Müllerian CCC arising from intestinal endometriosis is extremely rare and may occur in postmenopausal women without known endometriosis. Accurate immunohistochemical diagnosis is essential to avoid misclassification and guide appropriate oncologic management.

Indexed as

clear cell carcinomaendometriosisextragenital endometriosisMullerian tumorsigmoid colon

Identifiers

PMID42723985
PMCPMC13558148

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.