[Rudimentary horn pregnancy: clinical analysis of 12 cases and literature review].

Objective: To investigate the clinical characteristics, treatments and fertility recovery of rudimentary horn pregnancy (RHP). Methods: The clinical data of 12 cases with RHP diagnosed and treated in Peking University Third Hospital from January 1, 2010 to December 31, 2022 were retrospectively analyzed. Clinical informations, diagnosis and treatments of RHP and the pregnancy status after surgery were analyzed. Results: The median age of 12 RHP patients was 29 years (range: 24-37 years). Eight cases of pregnancy in residual horn of uterus occurred in type Ⅰ residual horn of uterus, 4 cases occurred in type Ⅱ residual horn of uterus; among which 5 cases were misdiagnosed by ultrasound before surgery. All patients underwent excision of residual horn of uterus and affected salpingectomy. After surgery, 9 patients expected future pregnancy, and 3 cases of natural pregnancy, 2 cases of successful pregnancy through assisted reproductive technology. Four pregnancies resulted in live birth with cesarean section, and 1 case resulted in spontaneous abortion during the first trimester of pregnancy. No uterine rupture or ectopic pregnancy occurred in subsequent pregnancies. Conclusions: Ultrasonography could aid early diagnosis of RHP while misdiagnosis occurred in certain cases. Thus, a comprehensive judgment and decision ought to be made based on medical history, physical examination and assisted examination. Surgical exploration is necessary for diagnosis and treatment of RHP. For infertile patients, assisted reproductive technology should be applied when necessary. Caution to prevent the occurrence of pregnancy complications such as uterine rupture, and application of cesarean section to terminate pregnancy are recommended.

Management of non-tubal ectopic pregnancies analysis of a large tertiary center case series.

PURPOSE: Ectopic pregnancies include cesarean scar (CSP), cornual and cervical pregnancies. Various treatment modalities have been- described, but no standardized procedure has been defined so far. The aim of our analysis was to evaluate the diagnostics and treatment at the Department of Obstetrics and Gynecology, LMU University Hospital, Munich. METHODS: In this retrospective, single-center analysis, 24 patients treated between 2015 and 2020 were analyzed. After verification of the diagnosis by imaging and HCG-analysis, the treatment was individually determined: therapy with methotrexate (MTX) locally with or without simultaneous systemic treatment, surgical treatment via curettage, excision with uterine reconstruction even hemi hysterectomy. RESULTS: Ten patients presented with CSP, six with cervical and eight with cornual pregnancies. Median age was 34.6 years. CSP was treated with local MTX in six cases; five required additional treatment with systemic MTX or curettage. Primary curettage or surgery was performed in four cases. In cervical pregnancies the primary therapy with local MTX injection and systemic treatment was performed in 50%. One patient was treated with MTX and insertion of a Bakri balloon. Trachelectomy was required in one case. 50% of cornual pregnancies were treated with MTX locally and intramuscularly and 50% received surgery. CONCLUSION: Treatment strategies were based on the patient's individual risk parameters. The results of this study show, that simultaneous treatment with local and systemic MTX had good outcomes and could avoid surgeries.

Diagnostic dilemma between angular and interstitial ectopic pregnancy: 3D ultrasound features.

Angular pregnancy is a rare entity which is commonly confused with interstitial or cornual pregnancies. A lack of consensus about the specific ultrasound features of these 3 entities leads to inappropriate interchange between them among the literature. An angular pregnancy should be considered as a potentially viable intra-uterine eccentric pregnancy as it might be carried to term and result in a live-born baby whereas interstitial or cornual pregnancies should be considered as ectopic pregnancies which should be interrupted. We report here two cases of women at 8 weeks of pregnancy with an angular pregnancy diagnosed by vaginal 2D and 3D ultrasound and discuss about specific ultrasound features and alternative imaging modalities to distinguish it from interstitial and cornual pregnancies.

Management of 14 patients with cornual heterotopic pregnancy following embryo transfer: experience from the past decade.

OBJECTIVE: There are two major management approach for cornual heterotopic pregnancy, transvaginal cornual embryo reduction with ultrasound guidance, or laparoscopic cornual resection. This no consensus on the optimal management for cornual heterotopic pregnancy. Here, we are trying to determine the optimal management approach for patients with viable cornual heterotopic pregnancy following embryo transfer. METHODS: This is a retrospective cohort study conducted at the locally largest reproductive center of a tertiary hospital. A total of 14 women diagnosed as viable cornual heterotopic pregnancy following embryo transfer. Six patients were treated with cornual pregnancy reduction under transvaginal ultrasound guidance without the use of feticide drug (treatment 1), and eight patients were treated with laparoscopic cornual pregnancy resection (treatment 2). RESULTS: All 14 patients of cornual heterotopic pregnancy following embryo transfer due to fallopian tubal factor, among which, 12 patients had cornual pregnancy occurred in the ipsilateral uterine horn of tubal pathological conditions. Nine (64.29%) showed a history of ectopic pregnancy. Thirteen (92.86%) patients were transferred with two embryos and only one patient had single embryo transferred. Six patients received treatment 1, and 2 (33.33%) had uterine horn rupture and massive bleeding which required emergency laparoscopic surgery for homostasis. No cornual rupture occurred among patients received treatment 2. Each treatment group had one case of spontaneous miscarriage. The remaining 5 cases in treatment 1 group and the remaining 7 cases in treatment 2 group delivered healthy live offspring. CONCLUSION: Patients with tubal factors attempting for embryo transfer, especially those aiming for multiple embryos transfer, should be informed with risk of cornual heterotopic pregnancy and the subsequent cornual rupture. Compared with cornual pregnancy reduction under transvaginal ultrasound guidance, laparoscopic cornual resection might be a favorable approach for patients with viable cornual heterotopic pregnancy.

Minimally invasive surgical management of a cornual ectopic pregnancy, with and without a concurrent intrauterine pregnancy.

OBJECTIVE: To describe techniques for resection of a cornual heterotopic pregnancy. DESIGN: This video demonstrates a surgical technique for excision of a cornual heterotopic pregnancy with narrative video footage using two case examples. SETTING: The incidence of cornual heterotopic pregnancy is unknown; however, the incidence of heterotopic pregnancy itself has increased through the use of assisted reproductive technologies and the majority of cornual heterotopic pregnancies occur after assisted reproductive technologies use. These cases have been treated traditionally using exploratory laparotomy and cornual wedge resection with good outcomes. With advancements in minimally-invasive surgical techniques, laparoscopic resection of cornual heterotopic pregnancies has been demonstrated to be safe and feasible. PATIENT(S): A patient with an 8-week cornual heterotopic pregnancy and a patient with a 10-week cornual ectopic pregnancy. INTERVENTIONS: Laparoscopic resection of the cornual ectopic pregnancy. MAIN OUTCOME MEASURE(S): Feasibility of a "purse-string" technique for the resection of a heterotopic cornual pregnancy. RESULT(S): Robotic-assisted laparoscopic resection of a cornual heterotopic pregnancy can be performed with minimal blood loss with the use of the "purse-string" technique in settings where vasopressin cannot be used for hemostasis. This technique includes the use of a 2-0 V-Loc suture in a circumferential fashion around the ectopic pregnancy, which allows for faster suturing and immediate tension at the myometrium. The same suture is then used to close the defect, which allows for a simpler and efficient closure with minimal entry into the myometrium. CONCLUSION(S): In this video, we demonstrate the successful resection of cornual heterotopic pregnancy using a "purse-string" surgical technique. This technique allows for minimal blood loss in cases where additional techniques for hemostasis cannot be used, such as injection of vasopressin and uterine artery ligation.

Avoiding the fatal misdiagnosis of pregnancy in a noncommunicating rudimentary horn using 3D transvaginal ultrasound.

Rudimentary horn pregnancies are an increasingly recognized complication of Mullerian duct anomalies. They can lead to uterine rupture with severe maternal morbidity and mortality. We present the case of a 28-year-old woman with a prior surgical diagnosis of bicornuate uterus who was diagnosed with a 7-week pregnancy in the left horn of a bicornuate uterus by 2D ultrasound. Further investigation with 3D ultrasound revealed that the pregnancy was within a noncommunicating rudimentary horn of a unicornuate uterus. These findings were confirmed at laparotomy. This case illustrates the importance and benefits of utilizing 3D ultrasound in diagnosing suspected Mullerian anomalies.

Decidualized juvenile cystic adenomyoma mimicking a cornual pregnancy.

OBJECTIVE: To demonstrate the laparoscopic excision technique of a juvenile cystic adenomyoma and show how the decidualization of ectopic endometrial tissue can lead to the misdiagnosis of a focus of ectopic pregnancy. DESIGN: Description and step-by-step demonstration of the surgical procedure using a video recording (Canadian Task Force Classification 3). SETTING: Teaching and research hospital. PATIENT(S): A 27-year-old gravida 2 parity 1 patient with one previous caesarean delivery presented to the emergency department with symptoms of pelvic pain and delayed menses. Her beta-human chorionic gonadotropin level was 2,161 mIU/mL. On transvaginal ultrasonography the uterine cavity appeared empty without any signs of a gestational sac, and a 42×45 mm heterogeneous mass was observed on the right cornual area. An 18×21 mm cystic area was observed within the mass. A diagnosis of cornual pregnancy was made and two doses of systemic methotrexate treatment were administered. On the 12th day following medical treatment, the patient reported increasing abdominal pain and free fluid was observed in the pouch of Douglas on ultrasonography. The decision to perform laparoscopic cornual excision was made. MAIN OUTCOMES AND MEASURE(S): On laparoscopic exploration a tubal ectopic pregnancy was observed within the left fallopian tube. The presence of two simultaneous ectopic pregnancies, located in the left fallopian tube and the right cornual area, was suspected. However, upon careful inspection, the right fallopian tube appeared normal and the mass initially thought to be a right cornual pregnancy appeared more like a degenerated fibroid. A left salpingectomy was performed and the excision of the mass in the right cornual area was planned. An incision was made over the mass and the cystic inner area containing chocolate-brown colored fluid was drained. As there was no pseudo capsule surrounding the mass, the diagnosis of focal adenomyosis instead of degenerated fibroid was made. No endometriotic foci were observed within the pelvis. Different from the enucleation of a fibroid, the mass was dissected from the middle into two halves until healthy myometrium was reached on the floor of the mass. The two halves of the mass were resected totally by dissecting the adenomyotic tissue from the myometrium starting from the caudal end towards the cranial end. The first layer of the remaining myometrial defect was sutured extracorporeally with No.1 polyglactan sutures. The second and third layers were sutured intracorporeally with V-loc sutures. The resected left fallopian tube containing the ectopic pregnancy and the adenomyotic mass were externalized through a posterior colpotomy incision. RESULT(S): The patient was discharged 24 hours postoperatively without any complications. A diagnosis of juvenile cystic adenoma was made upon histopathological examination. The patient reported subsiding of her dysmenorrhea on the postoperative third month. CONCLUSION(S): Juvenile cystic adenomyosis (JCA), is a rare form of focal adenomyosis which is usually located in close proximity to the uterine insertion of the round ligament, contains a cystic inner area larger than 1 cm and is encountered before the age of 30 years. Some authors reported JCA to be an accessory and cavitated uterine mass (ACUM) anomaly developing as a result of gubernaculum dysfunction. The only difference between the two conditions is reported to be the presence of a denser area of adenomyosis surrounding the cystic area lined with endometrium in JCA than in ACUM. This case has shown that decidual changes observed in ectopic endometrial tissue within an adenomyotic area may be misdiagnosed as a focus of ectopic pregnancy. Atypical endometriomas demonstrating decidual changes may also be misdiagnosed as ovarian malignancies. In non-emergency situations, waiting for the decidualization effect of ectopic endometrium to subside can help in the definitive diagnosis of such cases. Our technique for JCA excision is different from enucleation of a fibroid and may aid in the total resection and dissection of the adenomyotic tissue from healthy myometrium.

Tale of rudimentary horn pregnancy: case reports and literature review.

Rudimentary horn pregnancy (RHP) is a rare form of pregnancy in a rudimentary uterine horn with a reported incidence of 1 in 76,000 and 1 in 150,000. A significant number of cases is diagnosed only following rupture of the RHP with an estimated maternal mortality rate of 0.5%. Early diagnosis can help in planning management before its rupture and allows for surgical treatment using laparoscopy.

Sonographic findings of early pregnancy in the rudimentary horn of a unicornuate uterus: A two case report.

Congenital uterine anomalies have a profound impact on reproductive outcomes. The unicornuate uterus accounts for approximately 20% of all congenital uterine anomalies. Unicornuate uterine anomalies with non-communicating rudimentary horns are at risk of developing ectopic pregnancy in the rudimentary horn. Given increased risked of uterine rupture, rudimentary horn pregnancies pose significant maternal health risks. Understanding the sonographic appearance of early pregnancy within the rudimentary horn of the unicornuate uterine configuration is imperative for appropriate and timely clinical management. We present two cases of pregnancy in the rudimentary horn of a unicornuate uterus diagnosed sonographically in the first trimester.

[Interstitial, angular and cornual pregnancies: Diagnosis, treatment and subsequent fertility]. / Grossesse interstitielle, angulaire et cornuale : diagnostic, traitement et futur obstétrical.

OBJECTIVE: Interstitial, angular and corneal pregnancies are not very frequent and often mistaken, each with its own definition and prognosis. The objective of this work is to relate 10 years experience of ectopic pregnancies at the UH in Dijon, based on the latest data from the literature in term of diagnosis, management and subsequent fertility. METHOD: This is a retrospective study carried out at the UH of Dijon from 01/01/2005 to 01/01/2015. From the medical records of each patient who presented a corneal, interstitial or angular pregnancy, we identified the risk factors for ectopic pregnancy (EG), the diagnostic and therapeutic means used, and the subsequent obstetrical events. RESULTS: In 10 years, 532 EG were managed including 10 interstitials, one angular and nine cornual. The main risk factors were previous EG (50%), salpingectomy (55%), curettage (45%) and smoking (40%). The localization of the EG was done in 75% by the endo-vaginal sonography, in 25% in peroperative. Thirty-five percent were treated with methotrexate, 20% had surgery and 40% had both. Seventy-five percent of patients had at least one ulterior pregnancy. In the case of caesarean section, no dehiscence of the corneal scar was identified. CONCLUSION: This study shows the presence of medical antecedents which are risk factors of the tubular EG. A methotrexate protocol should be proposed first. Even after corneal surgery, vaginal delivery may remain possible.

Hemostatic Techniques for Laparoscopic Management of Cornual Pregnancy: Double-Impact Devascularization Technique.

Cornual pregnancy is a rare form of ectopic pregnancy, accounting for up to 2% to 4% of all ectopic pregnancies, with a mortality range of 2.0% to 2.5%. Hemorrhage is a key concern in the management of such pregnancies. Traditional treatment options include a conservative approach, failing which patients are offered surgical options such as cornual resection at laparotomy, which carries a high risk of hysterectomy. In recent years newer laparoscopic cornual resection or cornuotomy techniques have been used successfully to achieve better outcomes with fewer complications. We present the double-impact devascularization (DID) technique for laparoscopic management of cornual ectopic pregnancies. This technique permits hemostatic control by compression effect, which in turn allows reduction in procedure-related patient morbidity and mortality. We also provide an overview of other reported methods of hemostatic control used in similar laparoscopic procedures. DID appears to be a useful, safe, minimally invasive technique that can be used in both laparoscopic and open surgical procedures.

Cornual Ectopic Pregnancy Complicated by Infected Hematoma.

Cornual ectopic pregnancies are rarely encountered in clinical practice. A diagnostic and therapeutic challenge, complications include hemorrhage and the presence of persistently elevated serum beta-hCG requiring administration of methotrexate. In this case, we present a patient whose postoperative course was complicated by an infected hematoma that responded to conservative management.

Embarazo cornual y metotrexato en multidosis / Cornual pregnancy and multidose methotrexate

El embarazo cornual es una patología poco frecuente pero con una elevada mortalidad si no se diagnostica precozmente. La ecografía vaginal permite un diagnóstico precoz y la realización de un tratamiento conservador con metotrexato, reduciendo la morbimortalidad materna. Presentamos un caso de una gestante diagnosticada de embarazo cornual derecho no accidentado que fue tratada con metotrexato multidosis con éxito

Cornual pregnancy is a rare condition but has high mortality unless diagnosed early. Early diagnosis with transvaginal ultrasound allows conservative treatment with methotrexate, thus reducing maternal morbidity and mortality. We report a case of an unruptured right cornual pregnancy successfully treated with multidose systemic methotrexate

Cornual, interstitial, and angular pregnancies: clarifying the terms and a review of the literature.

The terms "cornual," "interstitial," and "angular" pregnancies are used inconsistently in the literature. Some sources use "interstitial" and "cornual" synonymously, while others reserve "cornual" for gestations in bicornuate or septate uteri; others distinguish interstitial from angular pregnancy, while in practice, many physicians are unfamiliar with the latter designation. This article aims to clarify the terms and review the literature with respect to diagnosis and prognosis, with attention to the potential roles of 3D ultrasound and magnetic resonance imaging.

Cornual ectopic pregnancy: an example of the overdiagnosis of molar ectopic pregnancy: a case report.

BACKGROUND: Molar ectopic pregnancies are rare. A literature search revealed that molar ectopic pregnancies are overdiagnosed. CASE: A 25-year-old, G5P3013, African American woman presented to a com- munity hospital with sudden onset of sharp, stabbing, low abdominal pain and nausea and vomiting. Quantitative hCG was 6,644 mIU/mL and ultrasound demonstrated increased vascularity and a hypoechoic, partially tubular collection in the left adnexa concerning for ectopic pregnancy. Laparoscopy revealed a small amount of blood and a slight bulge in the left uterine cornu, which ruptured during blunt exploration. Laparotomy revealed the ruptured left uterine cornu with tissue protruding. A wedge resection of the cornu was performed. The pathologic findings from the cornual resection were consistent with a complete mole. Immunohistochemical staining was performed using p57 analysis 1.5 years later and was consistent with early ectopic pregnancy. CONCLUSION: p57 analysis is an important adjunct in the accurate diagnosis of ectopic hydatidiform molar pregnancy.