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Study on the Ultrasound and Biological Characteristics of Atypical Endometriosis.

Endometriosis "Atypical" and Cancerized: Anatomopathological and Clinical-instrumental Characterization on the Ultrasound and Biological Characteristics of Atypical Endometriosis.

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07816133
Acronym
ENDOAT
Enrollment
200
Registered
2026-09-11
Start date
2026-10-01
Completion date
2029-06-01
Last updated
2026-09-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Endometriosis

Keywords

endometrioma, immunohistochemical and molecular analysis, anatomopathological analysis

Brief summary

This study hypothesizes that the histological, immunophenotypic, and molecular characterization of atypical endometriotic lesions may be related to specific clinical and ultrasound features.Identifying potentially atypical lesions would allow for more accurate stratification of patients, distinguishing definitely benign from potentially atypical endometriosis. The targeted study of endometriosis, both typical and atypical, also with reference to the inflammatory microenvironment, as well as immunophenotypic and molecular characteristics, could allow the formulation of pathogenic hypotheses on the development and progression of atypia towards malignant neoplasms.

Detailed description

Observational, retrospective-prospective, cross-sectional, single-center study conducted on patients undergoing laparoscopic surgery for benign or malignant pathology (endometrial or ovarian). The study does not include changes to the standard care pathway and all procedures are in normal clinical practice. The indication for surgical treatment is formulated on the basis of the most up-to-date guidelines on the subject. The study includes two phases: * Single-center observational retrospective study with case collection starting June 2024 * Single-center prospective observational study with recruitment of new cases for 30 months after the start of the project. At the time of the pre-hospitalization visit, the patient will be clearly and understandably illustrated with the rationale and objective of the study, the planned procedures (which do not deviate from normal clinical practice) and the data that are intended to be collected for each patient. There are four groups under comparison: patients with endometriosis without atypia and patients with neoplasia not associated with endometriosis represent the "controls", while patients with atypical endometriosis and patients with cancerized endometriosis or neoplasia associated with endometriosis represent the "cases". Patients with ovarian / endometrial neoplasia not associated with endometriosis will serve as a control for both the ultrasound appearance of the lesions and for anatomopathological analysis (including immunohistochemical and molecular investigations). Patients included in the study will undergo a level II gynecological ultrasound with transvaginal technique by experienced operators, the images will be reviewed by two experienced operators. Patients will be operated on by operators experienced in endometriosis surgery. The anatomopathological diagnostic report will be structured sec. International Collaboration on Cancer Reporting (ICCR) (Annexes 1 and 2), which includes essential elements ("core"), and optional elements ("non-core") (https://www.iccr-cancer.org/). Each case will be evaluated individually and then in doubles by two anatomopathologists experienced in gynecological pathology. The immunohistochemical and molecular panel are routinely performed in patients with atypical endometriosis, cancerized endometriosis, or endometriosis-associated neoplasia and in neoplasms not associated with endometriosis, therefore the performance of these procedures does not deviate from such clinical practice. In patients with endometriosis "typical", a reduced panel will be performed, if deemed necessary by the pathologist, particularly if there are dubious morphological pictures.

Interventions

Single-center observational retrospective study with case collection starting June 2024

OTHERprospective case-control group

Single-center prospective observational study with recruitment of new cases for 30 months from the start of the project.

Sponsors

Casa di Cura Dott. Pederzoli
Lead SponsorOTHER

Study design

Observational model
CASE_CONTROL
Time perspective
CROSS_SECTIONAL

Eligibility

Sex/Gender
FEMALE
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Age \> 18 years * Candidate patients for endometriosis surgery with deep endometriosis (intestine, LUS) and/or endometrioma localizations. * Patients who are candidates for surgery for established or suspected endometrial and/or ovarian neoplasm * Patients who have performed a level II gynecological ultrasound with an experienced operator in the preoperative process. * Patients where there is the technical possibility of performing a transvaginal and/or transrectal ultrasound and the patient's willingness to undergo such an investigation. * Signing of informed consent.

Exclusion criteria

* Technical impossibility of performing a transvaginal ultrasound (patient virgo, patient refusal). * Previous neoplasms * Patient who does not provide their informed consent.

Design outcomes

Primary

MeasureTime frame
Identification of specific histopathological, immunohistochemical and molecular biology features for definable "atypical", "preneoplastic" or "cancerized-neoplastic" lesions and the surrounding microenvironmentthrough study completion, an average of 1 year

Secondary

MeasureTime frame
Identification of specific ultrasound features of lesions described in histological examination as "atypical", "preneoplastic", or "cancerized-neoplastic"through study completion, an average of 1 year

Countries

Italy

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 12, 2026