O-071 The ovarian endometriotic cyst

text "The ovarian endometriotic cyst” Ovarian endometriomas affect 17 to 44% of women with endometriosis, and are often associated with pelvic pain and infertility. Patients suffering from endometriosis frequently present an already reduced ovarian reserve, assessed by AMH dosage or by antral follicular count during TVS. Pain and infertility are the main indications for endometrioma surgery which is a complex procedure as endometriosis leads to inflammation around the lesions, causing fibrosis. Three main surgical procedures have been described: the ovarian cystectomy, the endometrioma ablation or the combined technique. During the cystectomy, after ovarian mobilization and adhesions lifting, an incision of the cortex is realized to find a cleavage plane between the cyst wall and the ovarian cortex. Traction and countertraction movements are performed to carefuly dissociate the cyst from the ovarian cortex. It is crucial to handle the ovarian tissue as atraumatically as possible. With this technique, the cyst wall as well as the surrounding fibrosis are excised with the risk of oocytes removal responsible for decreased ovarian reserve. The ablative surgery is defined by the fenestration and vaporization of the endometrioma cyst. The ablation is carried out using a laser or plasma energy or electrocoagulation. Once the endometrial cyst has been emptied of its contents, the entire internal surface of the endometrioma must be sprayed or evaporated using the different chosen techniques. Where feasible, the cyst may be turned inside out to facilitate further treatment. The combined technique associates partial cystectomy (80-90%) and ablation of the 10-20% remaining endometrioma. This method is especially useful while operating large endometriomas. It prevents excessive bleeding or damage to the ovarian tissue. In cases of large ovarian endometrioma, the three-step approach has been proposed, consisting on an opening and drainage of the cyst followed by a 3 months’ administration of Gn-RH agonists in order to reduce its diameter and vascularization. A second surgical procedure is then scheduled to ablate the remaining cyst wall. In conclusion, it is crucial to keep in mind that endometriosis and especially the presence of endometrioma reduce fertility whereas in the majority of cases, the ovarian reserve is already diminished in relation to the patient's age. Ovarian preservation must be one of our priorities in young patients of childbearing age and it is therefore really important to carry out surgeries that are as atraumatic as possible. Trial registration number: Study funding: Funding source:

The Effect of Combined Oral Contraceptive Pills on Beclin-1 and LC3B Transcript Levels in Ovarian Endometrioma

Background. Autophagy is likely altered in patients with endometriosis. Ovarian steroid hormones seem to affect this changing of the autophagic process. Objective. To study the effect of combined oral contraceptive (COC) pills on the expression of autophagic-related gene BECN1 and LC3B in the ectopic and eutopic endometria of patients with endometriosis. Material and Methods. The present quasiexperimental study recruited 36 women (18–45 years old) with endometrioma and nonendometrioma who were scheduled for surgery. Patients with endometrioma were randomly assigned to either a no-treatment group ( n = 12 ) or a COC group ( n = 12 ). The COC group was prescribed a daily oral pill composed of 3 mg drospirenone and 0.03 mg ethinyl estradiol for 6 weeks before surgery. The control group ( n = 12 ) was composed of women without endometrioma. Ectopic endometriotic and endometrium tissues were collected from the no-treatment and COC groups, whereas the only endometrium was collected from the control group. These tissues were used for real-time PCR to measure the expression of the BECN1 and LC3B genes. Results. The baseline demographic data were not different among the three groups. The BECN1 gene expression in endometrium tissue in the COC group was significantly less than that in the no-treatment and control groups ( P = 0.011 and 0.029, respectively). No significant difference of endometriotic cyst BECN1 and LC3B gene expression was found between COC and no treatment. Conclusions. Oral COC pills for 6 weeks continuously before surgery decreased the eutopic endometrial expression (mRNA) of the BECN1 gene compared to those from healthy normal women and nontreated patients with an endometriotic cyst. The change in the expression of autophagy-related genes was more distinct in eutopic than ectopic endometria. This trial is registered with TCTR20170720002. Registered and enrolled the first patient on 20 July 2017.

Effect of combined contraceptive pill on immune cell of ovarian endometriotic tissue

Background Dysregulation of immune response is associated with development of endometriosis. The study aim was to evaluate effect of combined oral contraceptive pills (COCs) consisting of ethinyl estradiol (EE) and desogestrel on the expression of macrophage, natural killer cells, and regulatory T cells of ovarian endometriotic cysts. Methods Endometriotic cyst wall tissues were collected from women with endometriosis who were treated (n = 22) with COCs (one table per day of EE 0.03 mg and desogestrel 0.15 mg administered for 28 to 35 days before surgery) or untreated (n = 22). The tissues were collected from endometriotic cyst wall during laparoscopic or laparotomy ovarian cystectomy. Immunohistochemistry for anti-CD68, anti-CD56, and anti-forkhead–winged helix transcription factor (FoxP3), a marker for macrophages, natural killer cells, and regulatory T cells, respectively, were investigated. Results The median (interquartile range [IQR]) number of anti-CD68 positive cells in the COC group was significantly lower than in the untreated group (12.7; 4.9–19.3) versus 45.7 (26.0–70.7), p < 0.001). Tissue infiltration of anti-CD56 positive cells in endometriotic cyst was significantly higher after the treatment when compared with tissue from untreated group (42.9, 27.4–68.9 versus 25.3 (14.1–37.3; p = 0.009). The number of regulatory T cells was also significantly increased in the COC group (6.3, 2.8–15.5) versus 0 (0–1.8; p < 0.001). Conclusions The effects of COC, containing EE 0.30 mg with desogestrel 0.15 mg, on the immune system was demonstrated by a significant decrease in the number of macrophages and an increase in natural killer and regulatory T cells.

Clinical and Pathological Significance of Cellular Atypia in Endometriosis

Objective: To highlight the most frequent localization of ovarian endometriosis, the presence of atypical endometriosis, and recurrences. Retrospective review of 259 patients diagnosed with ovarian endometriosis treated at Tîrgu-Mures Emergency County Hospital, Obstetric Gynecology Clinic, between January 2014 and December 2018. Methods: Data were collected and analyzed for demographics, size of ovarian endometriotic cyst, and recurrences. Results: Out of 259 patients, 51 patients presented atypia, 20 on the right, 24 on the left, and seven patients were diagnosed with endometriosis with bilateral atypia. Higher susceptibility for left localization was noted. Thirty-nine patients (15.1%) presented recurrence. A statistically significant correlation (p = 0.006) was noted between patients with recurrence and atypia compared with those without atypia and endometriotic cysts larger than 7 cm. Patients with relapse under the age of 40 were noted to have mainly atypia with localization on the right (p = 0.025, OD = 4.107). Conclusion: The presence of endometrioma was not statistically significant correlated with left or right sided localization; recurrent endometriomas larger than 7 cm represents a risk for atypical endometriosis development. Recurrence and atypia appear more often in patients under the age of 40 and are right-sided. The total removal of the endometriomas can prevent the recurrence and subsequently the appearance of atypia and secondary neoplastic conditions.

A Rare Case of Pancreatic Endometriosis Masquerading as Pancreatic Mucinous Neoplasm

Endometriosis is a relatively common condition among women, and pancreatic endometriosis has been reported on rare occasions. Such pancreatic lesions are difficult to diagnose and distinguish from other cystic lesions of the pancreas preoperatively. This report describes a case of pancreatic endometriosis in a 51-year-old female patient. Imaging demonstrated an enlarging cyst with findings concerning for a mucinous neoplasm. The patient underwent robotic distal pancreatectomy and splenectomy. Histopathology revealed an endometriotic cyst. Pancreatic endometriosis can be difficult to distinguish from other lesions of the pancreas. Surgical resection should be undertaken in cases where malignancy is suspected.

Effects of Ethinyl Estradiol in Combined Oral Contraceptives on Cell Proliferation and Apoptosis in Ectopic Endometrial Tissue: A Randomized Controlled Study

Objective: Since endometriosis is an estrogen-dependent disease; therefore, combined oral contraceptives (COCs) may not be the best choice for the treatment of endometriosis. The objective of the present study was to investigate the effects of ethinyl estradiol (EE) and desogestrel (DSG) in COCs on cell proliferation and apoptosis in ectopic endometrial tissue as compared to DSG alone. Materials and methods: Forty-five women of reproductive age with at least one endometriotic cyst were recruited into this single-blind randomized controlled trial study and randomly divided equally into three groups. EE-DSG and DSG groups received EE (0.03 mg) and DSG (0.15 mg) or DSG alone daily for 28-35 days before surgery. The control group was prescribed nothing. Endometriotic cyst tissues were collected during ovarian cystectomy for immunohistochemistry. Results: Levels of Ki-67 positive cells in the ectopic endometrial tissue of the EE-DSG group were significantly higher than the DSG group (median [IQR]; 1.4[1.2] vs 0.6 [0.7], P <0.016). There were significantly more TUNEL-positive cells in the EE-DSG group compared to the DSG group (median [IQR]; 2.8[0.7] vs 1.8[1.4], P < 0.016, respectively). Moreover, the number of TUNEL-positive cells in the EE-DSG and DSG groups were significantly higher than the control (median [IQR]; 2.8[0.7] vs 0.2[0.2] and 1.8[1.4] vs 0.2[0.2], P <0.016). The levels of cells that positively stained for Bcl2 were not different among all groups. Conclusion: Progestin alone increased cell apoptosis in ectopic endometria. However, concurrent EE in COCs enhanced proliferation and promoted a greater apoptotic effect in ectopic endometria compared to progestin alone.