Can the microcystic, elongated and fragmented pattern of invasion influence the evaluation of the depth of myometrial invasion in low-grade endometrioid endometrial cancer using imaging techniques?

Objectives: The microcystic, elongated and fragmented pattern of invasion can be associated with an underestimation of the depth of myometrial invasion by imaging techniques. We aimed to evaluate the influence of microcystic, elongated and fragmented pattern of invasion in the diagnostic performance of transvaginal ultrasound scan and magnetic resonance imaging for the prediction of the depth of myometrial invasion in low-grade endometrioid endometrial carcinomas. Methods: Prospective and consecutive study including all low-grade (G1-G2) endometrioid endometrial carcinomas diagnosed between October 2013 and July 2018 in a tertiary hospital. Preoperative staging was performed with transvaginal ultrasound scan and/or magnetic resonance imaging followed by surgical staging. Final histology was considered as the reference standard. Sensitivity, specificity and diagnostic accuracy for the prediction of depth of myometrial invasion was calculated for both imaging techniques. The STARD 2015 guidelines were used. Results: A total of 136 patients were consecutively included. Transvaginal ultrasound scan was performed in 132 patients and magnetic resonance imaging in 119 patients. The diagnostic accuracy of transvaginal ultrasound scan for the prediction of depth of myometrial invasion in the microcystic, elongated and fragmented negative group (82% (95% confidence interval = 73-88)) was higher compared to the microcystic, elongated and fragmented positive group (61% (95% confidence interval = 36-83)). The diagnostic accuracy of magnetic resonance imaging was also higher in the microcystic, elongated and fragmented negative group (80% (95% confidence interval = 71-87)) compared to the microcystic, elongated and fragmented positive (47% (95% confidence interval = 21-73)). Conclusions: In low-grade endometrioid endometrial carcinomas with a positive microcystic, elongated and fragmented pattern of invasion, the evaluation of the depth of myometrial invasion using transvaginal ultrasound scan and magnetic resonance imaging may be underestimated.

A giant superinfected uterine angioleiomyoma with distant septic metastases: an extremely rare presentation of a benign process and a systematic review of the literature.

PURPOSE: Uterine angioleiomyoma is a rare type of leiomyoma variant and there are few cases reported in the literature. The definitive diagnosis is usually obtained only after the histopathologic examination because there are no specific imaging criteria for this disease. The objective of this article is to review published cases about this clinical condition. METHODS: We report a case of giant angioleiomyoma superinfected by S. agalactiae with the development of latero-cervical distant metastasis in a premenopausal woman. Firstly, the case herein reported was orientated as an endometrial stroma sarcoma in the peri-operative histologic examination by frozen sections. It was treated with laparotomic total hysterectomy, bilateral salpingo-oophorectomy, inframesocolic omentectomy and pelvic and paraaortic lymph node dissection. Postoperative definitive anatomopathological analyses using a proper immunohistochemical panel revealed a case of uterine angioleiomyoma. We also review other case reports published about this clinical condition. RESULTS: We present the first case reported in the literature, in our knowledge, of a giant angioleiomyoma superinfected by S. agalactiae with the development of distant septic metastases. Immunohistochemistry permitted the definitive diagnosis of angioleiomyoma. Treatments previously reported are hysterectomy or tumor resection and any patient recurred. CONCLUSIONS: The definitive diagnosis is usually obtained after the definitive histopathologic examination since the use of immunohistochemical study has an important role in this regard. Complete surgical removal of the lesion is the treatment of choice, with no recurrent cases reported to date.

Hysteroscopic myomectomy without anesthesia.

OBJECTIVE: Scarce literature about myoma removal without anesthesia has been published. The aim of this paper is to evaluate the feasibility of a new alternative for a hysteroscopic myomectomy in a conventional office setting, without need for anesthesia. METHODS: Step-by-step description of the surgical technique has been provided, based on video images. An office hysteroscopy was performed in a Gynecological Endoscopy Department of a tertiary European hospital. RESULTS: A 49-year-old woman was referred for management of severe hypermenorrhea. Consent and approval were received from the patient and the institutional review board, respectively. The introduction of a Truclear® hysteroscopic polyp morcellator of 5.5 mm with optic of 0 degrees into the uterine cavity did not require any kind of anesthesia or cervical dilatation. The use of saline flow helped distend the cavity and identify a submucosal myoma. Under direct vision, a full myomectomy was performed via mechanical energy with continuous cutting movements, without any complication. After the procedure was completed, the excised material was aspirated through the device into a collecting pouch. A successful complete morcellation of a Type-0 submucosal leiomyoma with a polyp morcellator device was performed in an outpatient setting. Good medical results, good tolerance by the patient besides lower surgical risks due to mechanical instead of electrical energy are shown. CONCLUSION: In conclusion, this video demonstrates that a hysteroscopic myomectomy can be performed successfully in office with lower risk of complications from the procedure and without use of general anesthesia besides good tolerance by the patient.

Laparoscopic Isthmocele Repair with Hysteroscopic Assistance.

OBJECTIVE: To demonstrate our experience with hysteroscopic assistance in the laparoscopic repair of an isthmocele. DESIGN: Surgical video article (Canadian Task Force classification III). SETTING: University hospital. INTERVENTION: A 42-year-old woman with a history of previous caesarean section presented as an emergency with a large, seriously infected isthmocele. Once the infection was cured with antibiotics, sonography revealed a 23 × 14-mm isthmocele with 1.4-mm residual myometrium thickness. She reported postmenstrual spotting and dysmenorrhea of several years duration, as well as previous dyspareunia that had worsened after her cesarean section. Given her symptomatic isthmocele with thin residual myometrium and desire for childbearing, laparoscopic repair was offered. First, the bladder was dissected to expose the isthmus. Uterine arteries were dissected. Hysteroscopic guidance and transillumination revealed the edges of the defect. The isthmocele and fibrotic tissue were excised with cold scissors, minimizing cauterization. A hysterometer was placed in the uterine cavity to respect the cervical canal and posterior uterine wall, and the myometrium was then closed in 2 layers. The total surgical time was 120 minutes. The postoperative period was uneventful. At 2 months after surgery, sonography confirmed restoration, with a myometrium thickness of 8.3 mm. The patient was asymptomatic, except for dyspareunia. At 6 months after surgery, hysteroscopic examination was normal. We recommended that the patient avoid attempting pregnancy for 9 months. CONCLUSION: Hysteroscopic simultaneous assistance during laparoscopic isthmocele repair can be of great help in identifying the edges of the defect, especially in large cavities and in first cases, in which edges might not be clear otherwise. Resecting all of the fibrotic tissue while respecting healthy myometrium is essential. Excessive cauterization and ischemic suturing could prevent proper healing of the myometrium.

Exosome-like vesicles in uterine aspirates: a comparison of ultracentrifugation-based isolation protocols.

BACKGROUND: Uterine aspirates are used in the diagnostic process of endometrial disorders, yet further applications could emerge if its complex milieu was simplified. Exosome-like vesicles isolated from uterine aspirates could become an attractive source of biomarkers, but there is a need to standardize isolation protocols. The objective of the study was to determine whether exosome-like vesicles exist in the fluid fraction of uterine aspirates and to compare protocols for their isolation, characterization, and analysis. METHODS: We collected uterine aspirates from 39 pre-menopausal women suffering from benign gynecological diseases. The fluid fraction of 27 of those aspirates were pooled and split into equal volumes to evaluate three differential centrifugation-based procedures: (1) a standard protocol, (2) a filtration protocol, and (3) a sucrose cushion protocol. Characterization of isolated vesicles was assessed by electron microscopy, nanoparticle tracking analysis and immunoblot. Specifically for RNA material, we evaluate the effect of sonication and RNase A treatment at different steps of the protocol. We finally confirmed the efficiency of the selected methods in non-pooled samples. RESULTS: All protocols were useful to isolate exosome-like vesicles. However, the Standard procedure was the best performing protocol to isolate exosome-like vesicles from uterine aspirates: nanoparticle tracking analysis revealed a higher concentration of vesicles with a mode of 135 ± 5 nm, and immunoblot showed a higher expression of exosome-related markers (CD9, CD63, and CD81) thus verifying an enrichment in this type of vesicles. RNA contained in exosome-like vesicles was successfully extracted with no sonication treatment and exogenous nucleic acids digestion with RNaseA, allowing the analysis of the specific inner cargo by Real-Time qPCR. CONCLUSION: We confirmed the existence of exosome-like vesicles in the fluid fraction of uterine aspirates. They were successfully isolated by differential centrifugation giving sufficient proteomic and transcriptomic material for further analyses. The Standard protocol was the best performing procedure since the other two tested protocols did not ameliorate neither yield nor purity of exosome-like vesicles. This study contributes to establishing the basis for future comparative studies to foster the field of biomarker research in gynecology.

Risk factors for progression or persistence of squamous intraepithelial lesions diagnosed during pregnancy.

OBJECTIVE: This study aimed to assess the risk of progression/persistence of squamous intraepithelial lesions (SILs) during pregnancy according to the age of the woman, the grade of the lesion, the type of human papillomavirus (HPV) infection, and the mode of delivery. MATERIALS AND METHODS: Eighty pregnant women with abnormal cytologic result at the first antenatal visit were evaluated. Postpartum cytologic and histologic findings were compared with the antepartum findings. RESULTS: There were 40 patients with low-grade SIL and 40 with high-grade SIL (HSIL). The overall regression rate was 32.5%. There were 19 patients 25 years or younger and 61 patients older than 25 years. The regression rate among younger patients was 52.6% versus 26.2% among those older than 25 years (relative risk [RR] = 2.01, 95% confidence interval [CI] = 1.10-3.66). The regression rate was 45% in the group of low-grade SIL and 20% in the group of HSIL (RR = 2.25, 95% CI = 1.11-4.57). In patients with HSIL, those older than 25 years had a 2-fold increased risk of progression/persistence than younger patients. High-risk HPV-positive samples were typed in 44 cases, 21 of which (47.7%) were positive for HPV-16. The regression rate was 9.5% for HPV-16-positive cases and 52.2% for HPV-16-negative cases (RR = 5.48, 95% CI = 1.39-21.68). The risk of progression or persistence of the lesion according to mode of delivery did not show significant differences (RR = 1.15, 95% CI = 0.82-1.63). CONCLUSIONS: Age of the patient older than 25 years, HSILs, and HPV type 16 infection are risk factors for the progression or persistence of intraepithelial lesions of the cervix in the postpartum period.