Conservative Versus Surgical Treatment for Complex Neonatal Ovarian Cysts: Outcomes Study

Opting for conservative management over surgery for neonatal ovarian cysts

OBJECTIVE

To explore the suitability of conservative management for neonatal ovarian cysts in newborns.

METHODS

A retrospective cohort study was conducted, involving infants diagnosed with neonatal abdominal/pelvic cysts at two separate medical institutions from January 2015 through July 2021. Data collection included clinical characteristics, imaging results, pathological findings, and postnatal outcomes. Statistical analyses were performed using the Student's t-test, Mann-Whitney U-test, and receiver operating characteristic (ROC) curve.

RESULTS

In total, 34 cases of neonatal abdominal/pelvic cystic masses were detected, with mean birth weight of 3401 ± 515 g. Of these, 22 patients underwent postnatal cystectomy/oophorectomy. Pathological assessments revealed 16 uncomplicated cysts, 5 complex cysts, and 1 ovarian cyst with torsion complications. Notably, the cysts' dimensions at the time of surgical intervention had significantly decreased from the initial measurements (p = 0.015). The ROC curve analysis presented an area under the curve of 0.642, indicating moderate accuracy in employing cyst size as a discriminative feature to differentiate complex from simple ovarian cysts. Additionally, a short-term follow-up of nonsurgical cases indicated a 100% resolution rate by 24 months of age (n = 9).

CONCLUSION

Given their predominantly benign nature, the majority of neonatal ovarian cysts seem to be amenable to conservative management. This approach remains justified for larger cysts with minimal torsion risk, as well as considering the observed reduction in cyst size at birth, which further supports the case against surgical intervention.

European Paediatric Surgeons' Association Consensus Statement on the Management of Neonatal Ovarian Simple Cysts

INTRODUCTION

 Neonatal ovarian simple cyst management from the pediatric surgical aspect is unclear on cyst size, follow-up, and preferred surgical approach. Therefore, this topic was selected for the 2022 Consensus Session meeting of the European Paediatric Surgeons' Association (EUPSA).

METHODS

 The literature was reviewed on a predefined set of questions relating to the management of the neonatal ovarian simple cysts by a panel of 7 EUPSA members, on current evidence-based opinion and practice outlined. Each question (1) outcomes of fetal interventions in neonates after birth and consensus on size/timing of intervention, (2) consensus on the type of interventions, and (3) complications in neonatal ovarian cysts and follow-up recommendations in nonoperated/operated cysts, was presented with available evidence to congress session participants. The management approach was agreed by participants and comments were accounted to formulate the consensus statement.

RESULTS

 There is still limited data on potential benefits and complications of prenatal ultrasound-guided aspiration; however, neonates after such procedures should be followed for 6 months. Neonates with simple ovarian cysts larger than 4 cm should be offered surgical interventions within the 2 weeks of life with complete laparoscopic cyst aspiration and fenestration with bipolar instruments being the preferred approach. Ultrasound follow-up after surgical intervention after 3 months and with the conservative approach after every 3 to 4 months until 1 year.

CONCLUSION

 A peer-reviewed consensus statement for the management of neonatal ovarian simple cyst was formulated based on current evidence and peer practice. The EUPSA recognizes that the statement can be useful for pediatric surgeons in decision making for this pathology.

Congenital and gynecological tumors: A review

Congenital tumors are rare, and malignant congenital tumors are uncommon. Benign tu,mors might be life-threatening, depending on the location and size of the tumor. Different factors affect congenital tumors, such as maternal and placental hormones and environmental factors such as drugs, radiation, and infection. Developing fetal imaging methods and continuous follow-up during pregnancy are important factors in congenital tumor prognosis. Ultrasound is the most common method used for fetal evaluation. The complementary evaluation method is MRI. Both methods are helpful and widely spread for the detection of congenital tumors. These imaging methods help the medical team make a suitable decision about therapy. Some of these tumors regressed spontaneously, and some need surgical treatments. Treatment of tumors has developed rapidly, and recently molecular-targeted drugs have been used.

Managing Fetal Ovarian Cysts: Clinical Experience with a Rare Disorder

Background and Objectives: Fetal ovarian cysts (FOCs) are a very rare pathology that can be associated with maternal-fetal and neonatal complications. The aim of this study was to assess the influence of ultrasound characteristics on FOC evolution and therapeutic management. Materials and Methods: We included cases admitted to our perinatal tertiary center between August 2016 and December 2022 with a prenatal or postnatal ultrasound evaluation indicative of FOC. We retrospectively analyzed the pre- and postnatal medical records, sonographic findings, operation protocols, and pathology reports. Results: This study investigated 20 cases of FOCs, of which 17 (85%) were diagnosed prenatally and 3 (15%) postnatally. The mean size of prenatally diagnosed ovarian cysts was 34.64 ± 12.53 mm for simple ovarian cysts and 55.16 ± 21.01 mm for complex ovarian cysts (p = 0.01). The simple FOCs ≤ 4 cm underwent resorption (n = 7, 70%) or size reduction (n = 3, 30%) without complications. Only 1 simple FOC greater than 4 cm reduced its size during follow-up, while 2 cases (66.6%) were complicated with ovarian torsion. Complex ovarian cysts diagnosed prenatally underwent resorption in only 1 case (25%), reduced in size in 1 case (25%), and were complicated with ovarian torsion in 2 cases (50%). Moreover, 2 simple (66.6%) and 1 complex (33.3%) fetal ovarian cysts were postnatally diagnosed. All of these simple ovarian cysts had a maximum diameter of ≤4 cm, and all of them underwent size reduction. The complex ovarian cyst of 4 cm underwent resorption during follow-up. Conclusions: Symptomatic neonatal ovarian cysts, as well as those that grow in size during sonographic follow-up, are in danger of ovarian torsion and should be operated on. Complex cysts and large cysts (with >4 cm diameter) could be followed up unless they become symptomatic or increase in dimensions during serial ultrasounds.

Fetal Ovarian Cyst-A Scoping Review of the Data from the Last 10 Years

Abdominal cystic masses are diagnosed during the intrauterine period and have a relatively low incidence. Fetal ovarian cysts are the most common form diagnosed prenatally or immediately after birth. The pathophysiology of the development of these types of tumors is not fully elucidated, with ovarian hyperstimulation caused by maternal and placental hormones being the most accepted hypothesis. During intrauterine development, the diagnosis of fetal ovarian cysts is most often made accidentally during usual check-up ultrasounds corresponding to the first, second, and third trimesters of pregnancy. We conducted a scoping review with the aim to map the current knowledge regarding the treatment of fetal ovarian cysts diagnosed in the intrauterine period. Focusing on the articles published in the last 10 years in the specialized literature, we tried to identify a conceptualization regarding the surveillance and treatment of these anomalies.

Clinical outcomes of fetal ovarian masses diagnosed by prenatal ultrasonography and literature review

With the advancement of prenatal examination technology, more and more fetus with ovarian masses are diagnosed. However, whether such children need intervention measures after delivery, there is no more unified diagnosis and treatment measures in the world. In this study, postnatal data and clinical outcome of fetal diagnosed with ovarian masses were analyzed. We also combined with relevant literature to explore the postpartum intervention measures and timing of such children. A total of 57 cases of abdominal masses from the reproductive system were included in the study. These children were diagnosed with ovarian masses after birth. We collected from 2012 to 2020, the prenatal examination revealed the presence of abdominal masses from the reproductive system, and diagnosis was confirmed by imaging examinations after childbirth. We counted the fetal period data of these children, compared the changes in the postnatal pathology and intervention measures. A total of 57 cases of ovarian masses were diagnosed prenatally, 1 case was lost to follow-up, and 56 cases were finally included in the study. After birth a total of 21 cases of ovarian masses were treated conservatively, of which 18 cases resolved spontaneously during the follow-up process, with an average follow-up period of 30.88 ± 18.16 weeks. There were statistically significant differences in the nature and the maximum diameter of the mass between the two groups receiving conservative treatment or surgical treatment after delivery (P < .05).Univariate and multivariate Logistic regression analysis showed that there were significant differences in the nature and diameter of the mass between two groups (P < .05). In addition, we divided the children undergoing postpartum surgery into a laparoscopic surgery group and a conventional open surgery group. Through data analysis, we found that there were statistically significant differences in the age of operation, operation time, and hospitalization days in the two groups of these children (P < .05). Children diagnosed with ovarian masses prenatally generally have a good prognosis. For these children, the treatment plan should be developed according to the child general condition. If child with ovarian mass is treated with surgery, the preservation of ovarian tissue should be emphasized regardless of the size, nature, and torsion of the mass.

Intrauterine ovarian dermoid cyst complicated by torsion: an uncommon presentation of abdominal mass in a neonate

Fetal ovarian cysts are the most common abdominal masses in the female fetuses and believed to be caused by in utero exposure of fetus to maternal and placental hormones. Majority of them are diagnosed in third trimester and should be distinguished from other causes of abdominal masses of genitourinary and gastrointestinal origin. Once diagnosed serial ultrasound monitoring is recommended to document changes in size or appearance. Complications like torsion or rupture merit careful assessment and surgical intervention to preserve ovarian function and fertility.

We report a case of intrauterine ovarian dermoid cyst complicated by torsion, which was diagnosed prenatally on ultrasound as complex cystic lesion within the abdomen.

Fetal Ovarian Cysts: Prenatal Diagnosis Using Ultrasound and MRI, Management and Postnatal Outcome—Our Centers Experience

The present study provides our clinical experience regarding the imaging diagnosis, management and postnatal outcome of neonates prenatally suspected of having developed ovarian cysts. This multicenter observational study included patients diagnosed prenatally with fetal ovarian cysts and follow-up in the postnatal period. Descriptive statistics were used to render the information regarding the prenatal imaging aspect of the fetal pelvic masses using ultrasound and/or MRI, prenatal surveillance and postnatal neonate’s immediate outcome, indications leading to surgery and pathologic aspect. The inclusion criteria were fulfilled by 21 patients. The mean gestational age at the time of initial diagnosis was 31.28 weeks of gestation (WG). Only five out of 21 cysts regressed completely during pregnancy without postnatal complications. In addition, 11 out of 21 infant’s required surgical treatment in the first two weeks after birth, mainly for ovarian torsion. Five out of 21 neonates were referred to postnatal follow-up clinically and by ultrasound, but three out of five cases required emergency surgical treatment for acute complications. Ultrasound plays a major role in the diagnostic of fetal ovarian cyst. From our experience, MRI does not bring supplementary data or change the management. Spontaneous resolution of fetal ovarian cysts is to be expected but the ovarian mass could lead to serious complications, if resolution does not occur in due time.

Natural history of fetal ovarian cysts in the prenatal and postnatal periods

PURPOSE

To determine the natural history of fetal ovarian cysts and to investigate whether the prognosis can be predicted by prenatal ultrasonography (US).

METHODS

This retrospective study includes cases of fetal ovarian cysts diagnosed by prenatal US over a 6-year period. Cases were divided into four subgroups of cysts (small and simple, small and complex, large and simple, large and complex) according to their size and echotexture. US examinations were repeated every 2 weeks from the time of diagnosis to treatment.

RESULTS

A total of 37 cases were included in the study. 32.4% of the cases regressed spontaneously in the prenatal period and 32.4% did so in the infantile period. Prenatal resolution occurred more frequently with small cysts than with large cysts (p = 0.03). Neonates with complex cysts required surgical treatment more often than neonates with simple cysts (p = 0.009). 27.0% of the cases underwent surgery due to ovarian torsion. The torsion rate of fetal ovarian cysts that progressed in the prenatal period was significantly higher than in the case of stable cysts (p = 0.001).

CONCLUSION

The size of the fetal ovarian cysts, their US appearance and the progression of the cysts during follow-up are the main determinants of the neonatal outcome.

Symptomatic Persistent Fetal Ovarian Cysts

ABSTRACT

Vomiting in young infants is a common presentation to the pediatric emergency department with a broad differential diagnosis. We present 2 cases seen in our emergency department of infant females with symptomatic complex ovarian cysts who presented with vomiting. The first case study describes a patient with a prenatally diagnosed ovarian cyst that was being followed with serial ultrasounds by general surgery. The second case study describes a patient with reportedly normal prenatal ultrasounds with a subsequent diagnosis of a large complex ovarian cyst. These cases were selected to review pertinent imaging findings, discuss management decisions, and expand the differential of vomiting in the young female infants.

Surgical Management of Adnexal Masses in the Pediatric and Adolescent Age Group: Our Experience

CONTEXT

Adnexal masses in girls represent a wide pathological spectrum. We performed a retrospective analysis of clinical and diagnostic aspects of adnexal masses in girls.

AIMS

To analyze the clinical characteristics and surgical management of adnexal masses in children and adolescents.

SETTINGS AND DESIGN

Retrospective observational analysis from 2000 to 2020.

SUBJECTS AND METHODS

This analysis was performed on 28 children under the age of 17 years with adnexal masses who were managed by us at tertiary care centers of Delhi-NCR. Patients were analyzed based on their age at the time of admission, their presenting complaints, clinical and radiological findings, tumor markers, management, and follow-up.

RESULTS

The age ranged between newborn and 17 years. Abdominal pain, nausea with vomiting, and abdominal lump was the most common presenting complaints. Pelvic ultrasound with or without color Doppler done in all patients and computed tomography, magnetic resonance imaging was performed in seven patients preoperatively. Adnexal masses were unilateral in 26 (92.85%) patients and bilateral in 2 (7.15%) patients. Five babies had antenatal diagnosis of ovarian cysts. Serum alpha fetoprotein (AFP) and beta-human chorionic gonadotropin (b-HCG) were normal in all 19 tested patients. Cancer antigen 125 (CA-125) was raised in three ovarian tumors out of 9 tested patients. Laparoscopy was performed in 23 out of 28 patients (30 ovaries). Ovarian cyst torsion was present in 50% patients. Ovarian cystectomy was done in 10 (33.3%) patients. Six (20%) ovaries were saved by detorsion of the ovary and deroofing of the cyst with or without ovarian biopsy. Oophorectomy was done in five (16.7%) patients. Salpingo-oopherectomy had to be done in seven (23.3%) patients. Histopathology revealed functional nonneoplastic lesions in 18 cases (66.7%), benign neoplastic lesions in 8 cases (29.6%), and malignant neoplastic lesion in 1 case (3.7%).

CONCLUSIONS

Adnexal masses in children are generally benign. AFP, b-HCG, and CA-125 in ovarian torsion are within normal limits. Urgent surgery is required if torsion is established. The ovary should be preserved wherever possible.

Gynecological Problems in Newborns and Infants

Pediatric-adolescent or developmental gynecology has been separated from general gynecology because of the unique issues that affect the development and anatomy of growing girls and young women. It deals with patients from the neonatal period until maturity. There are not many gynecological problems that can be diagnosed in newborns; however, some are typical of the neonatal period. This paper aims to discuss the most frequent gynecological issues in the neonatal period.

"Follow the Fallopian tube": A technique to improve sonographic identification of ovaries in children

Ovary detection is the first step in confirming ovarian lesions. The daughter cyst sign is widely used for this purpose; however, it is not always applicable. Recent improvements in image resolution allow Fallopian tube delineation, which can serve as a guide to identify the ovary. This anatomical approach ("follow the Fallopian tube" technique) comprises three steps: (1) confirm the uterus; (2) follow the Fallopian tube; and (3) find the ovary. Other applications of this approach include the differentiation between nonovarian and ovarian masses and ruling out ovarian torsion and an auto-amputated ovary.

Guidelines of the Italian Society of Videosurgery in Infancy (SIVI) for the minimally invasive treatment of fetal and neonatal ovarian cysts

In the last three decades, fetal ovarian cysts were diagnosed more frequently, due to technological improvement and the increasing use of prenatal screening ultrasound. Nonetheless, treatment uncertainties are still present, either prenatally or postnatally. Recently, significant innovations on diagnosis and treatment have been proposed and a more conservative, minimally invasive approach may be offered to the Pediatrician or the Surgeon who face with this condition during prenatal or neonatal age. (...).

Current perspective and scope of fetal therapy: part 1

Fetal therapy term has been described for any therapeutic intervention either invasive or noninvasive for the purpose of correcting or treating any fetal malformation or condition. Fetal therapy is a rapidly evolving specialty and has gained pace in last two decades and now fetal intervention is being tried in many malformations with rate of success varying with the type of different fetal conditions. The advances in imaging techniques have allowed fetal medicine persons to make earlier and accurate diagnosis of numerous fetal anomalies. Still many fetal anomalies are managed postnatally because the fetal outcomes have not changed significantly with the use of fetal therapy and this approach avoids unnecessary maternal risk secondary to inutero intervention. The short-term maternal risk associated with fetal surgery includes preterm labor, premature rupture of membranes, uterine wall bleeding, chorioamniotic separation, placental abruption, chorioamnionitis, and anesthesia risk. Whereas, maternal long-term complications include risk of infertility, uterine rupture, and need for cesarean section in future pregnancies. The decision for invasive fetal therapy should be taken after discussion with parents about the various aspects like postnatal fetal outcome without fetal intervention, possible outcome if the fetal intervention is done, available postnatal intervention for the fetal condition, and possible short-term and long-term maternal complications. The center where fetal intervention is done should have facility of multi-disciplinary team to manage both maternal and fetal complications. The major issues in the development of fetal surgery include selection of patient for intervention, crafting effective fetal surgical skills, requirement of regular fetal and uterine monitoring, effective tocolysis, and minimizing fetal and maternal fetal risks. This review will cover the surgical or invasive aspect of fetal therapy with available evidence and will highlight the progress made in the management of fetal malformations in last two decades.

Management of ovarian lesions diagnosed during infancy

PURPOSE

Prior studies of infant ovarian cysts have recommended intervention for those larger than 4 cm. We reviewed the natural history and features of those managed operatively versus nonoperatively.

METHODS

A retrospective study was performed of ovarian lesions in children <1 year-old from 2000 to 2014.

RESULTS

Forty patients were identified. Twenty-eight (70%) underwent operative management, while 12 (30%) were managed conservatively, including one undergoing aspiration. The mean age at surgery was 125 days. All but one patient (96%) had evidence of antenatal torsion intraoperatively or on final pathology. All resected lesions were benign. Ultrasound findings more common in those undergoing surgery included intracystic debris (p < 0.001), fluid-fluid or fluid-debris levels (p = 0.002), absence of Doppler flow (p = 0.014), solid components (p = 0.04), and calcifications (p = 0.001). Cysts managed nonoperatively had an average diameter of 2.5 cm, compared to 5.1 cm in the operative group (p < 0.001). Three of the lesions managed nonoperatively had a diameter greater than 3.5 cm (mean 5.1 cm) and were followed for an average of 153 days until resolution.

CONCLUSIONS

The majority of infant ovarian lesions were excised, although none were malignant. Aspiration or observation of larger cysts was feasible and safe. Ovarian cysts in this age group should be considered for nonoperative management and closely followed.

LEVEL OF EVIDENCE

IIC.

A retrospective multicenter study of the natural history of fetal ovarian cysts

AIM

We investigated the natural history of fetal ovarian cysts to estimate the risk of torsion according to size.

METHODS

Cases were identified from 1/1/2000 until 1/1/2015. Data were collected pre- and postnatally on cyst size and sonographic features until an outcome of surgery, torsion, or resolution. Fisher's exact test for categorical data and logistic regression for continuous data were used to test the significance of size on torsion; P value <0.05 was considered significant.

RESULTS

37 patients with unilateral ovarian cysts were included. 12 (32%) resolved spontaneously prenatally, 14 (38%) resolved spontaneously postnatally, 5 (14%) underwent surgery postnatally and 6 (16%) cases underwent torsion. Rate of torsion increased with size from 0% (n=0) in cysts ≤20mm to 33% (n=2) in cysts >50mm; however, the overall trend failed to reach statistical significance (P=0.1). Cysts of 0-40mm had a significantly higher rate of spontaneous resolution (90% vs. 44% in >40mm, P=0.003), but the rate of torsion was not significantly different (10% in 0-40mm vs. 25% in >40mm, P=0.26). The median time to postnatal resolution was 10 (5-27) weeks in those treated conservatively.

CONCLUSION

Cysts >40mm are significantly less likely to resolve spontaneously; however torsion showed no significant correlation with cyst size. No complications were observed in cysts <20mm.

LEVEL OF EVIDENCE

IV, case series with no comparison group.

Outcome of fetal ovarian cysts diagnosed on prenatal ultrasound examination: systematic review and meta-analysis

OBJECTIVE

To explore the outcome of fetuses with a prenatal diagnosis of ovarian cyst.

METHODS

The electronic databases MEDLINE and EMBASE were searched using keywords and word variants for 'ovarian cysts', 'ultrasound' and 'outcome'. The following outcomes in fetuses with a prenatal diagnosis of ovarian cyst were explored: resolution of the cyst, change of ultrasound pattern of the cyst, occurrence of ovarian torsion and intracystic hemorrhage, need for postnatal surgery, need for oophorectomy, accuracy of prenatal ultrasound examination in correctly identifying ovarian cyst, type of ovarian cyst at histopathological analysis and intrauterine treatment. Meta-analyses using individual data random-effects logistic regression and meta-analyses of proportions were performed. Quality assessment of the included studies was performed using the Newcastle-Ottawa Scale.

RESULTS

Thirty-four studies (954 fetuses) were included. In 53.8% (95% CI, 46.0-61.5%) of cases for which resolution of the cyst was evaluated (784 fetuses), the cyst regressed either during pregnancy or after birth. The likelihood of resolution was significantly lower in complex vs simple cysts (odds ratio (OR), 0.15 (95% CI, 0.10-0.23)) and in cysts measuring ≥ 40 mm vs < 40 mm (OR, 0.03 (95% CI, 0.01-0.06)). Change in ultrasound pattern of the cyst was associated with an increased risk of ovarian loss (surgical removal or autoamputation) (pooled proportion, 57.7% (95% CI, 42.9-71.8%)). The risk of ovarian torsion was significantly higher for cysts measuring ≥ 40 mm compared with < 40 mm (OR, 30.8 (95% CI, 8.6-110.0)). The likelihood of having postnatal surgery was higher in patients with cysts ≥ 40 mm compared with < 40 mm (OR, 64.4 (95% CI, 23.6-175.0)) and in complex compared with simple cysts, irrespective of cyst size (OR, 14.6 (95% CI, 8.5-24.8)). In cases undergoing prenatal aspiration of the cyst, rate of recurrence was 37.9% (95% CI, 14.8-64.3%), ovarian torsion and intracystic hemorrhage were diagnosed after birth in 10.8% (95% CI, 4.4-19.7%) and 12.8% (95% CI, 3.8-26.0%), respectively, and 21.8% (95% CI, 0.9-40.0%) had surgery after birth.

CONCLUSION

Size and ultrasound appearance are the major determinants of perinatal outcome in fetuses with ovarian cysts. Copyright © 2016 ISUOG. Published by John Wiley & Sons Ltd.

Management of Complex Ovarian Cysts in Newborns - Our Experience

Aims: To analyse the clinical presentation, clinicopathological correlation and management of complex ovarian cysts in newborn and infants.

Materials and Methods: Over a period of 6 years (2009-2015), 25 newborns who were diagnosed to have ovarian cyst on antenatal ultrasound, were followed up. We collected data in the form of clinical features, radiological findings, pathology and mode of treatment.

Results: Of the 25 fetuses who were diagnosed to have ovarian cysts, fourteen (56%) underwent spontaneous regression by 6-8 months. Eight were operated in newborn period while 3 were operated in early infancy. Seven had ovarian cyst on right side, 4 had on left side. Eight babies underwent laparoscopy while 3 underwent laparotomy. Histopathology showed varied features of hemorrhagic cyst with necrosis and calcification, serous cystadenoma with hemorrhage, benign serous cyst with hemorrhage and simple serous cyst. Post-operative recovery was uneventful in all.

Conclusion: All the ovarian cysts detected antenatally in female fetuses need close follow-up after birth. Since spontaneous regression is known, only complex or larger cysts need surgical intervention, preferably by laparoscopy. Majority of the complex cysts show atrophic ovarian tissue hence end up in oophorectomy but simple cysts can be removed preserving normal ovarian tissue whenever possible.

Neonatal ovarian cysts: ultrasound assessment and differential diagnosis

Ovarian cysts are the most common abdominal cysts in female fetuses and newborn girls. Ultrasonography is the imaging technique of choice for diagnosing ovarian cysts because it makes it possible to differentiate them from other cystic lesions. Although most neonatal ovarian cysts regress in the first few months after birth, complications can occur during gestation or after birth. The manifestations of ovarian cysts on ultrasonography will depend on the complications. The management is controversial, although the current trend favors watchful waiting. We describe the different presentations of neonatal ovarian cysts with their complications and their patterns of findings on ultrasonography. We also discuss the differential diagnosis with other cystic abdominal lesions, and finally we discuss the therapeutic management of neonatal ovarian cysts.

Diagnosis of neonatal ovarian torsion: Emphasis on prenatal and postnatal sonographic findings

PURPOSE

Our aim was to retrospectively review the imaging findings of patients with neonatal ovarian torsion, emphasizing prenatal and postnatal sonographic findings.

METHODS

Eleven patients who had had neonatal ovarian torsion diagnosed surgically (n = 9) or clinicoradiologically (n = 2) were enrolled. Prenatal and postnatal sonographic features, including sequential postnatal change, were reviewed. Clinical and pathologic features were also investigated.

RESULTS

All patients except one had a fetal ovarian cyst (mean, 5.3 cm) detected on third-trimester sonography, either simple (n = 6) or complex (n = 4). In all 11 patients, initial postnatal sonography had revealed a complex cyst (mean, 4.7 cm) with intracystic clot or debris, the double-wall sign, a fluid-fluid level, and multiple septation. None of the patients had had symptoms or signs related to the ovarian torsion. Follow-up sonography in seven patients had revealed increased echogenicity of the cyst wall with frequent calcification and a decrease in size of the cyst. In two patients, the interval of the change in cyst position was noted, and autoamputation of the torsed ovary had been surgically confirmed. Serous cystadenoma had been identified in one patient.

CONCLUSIONS

Neonatal ovarian torsion most commonly manifests as an asymptomatic complex cyst on sonography due to torsion of a fetal ovarian cyst. Serial monitoring of a fetal ovarian cyst for its resolution or changes in its appearance is mandatory for making an early diagnosis of torsion. © 2016 Wiley Periodicals, Inc. J Clin Ultrasound 44:290-297, 2016.

Laparoscopic Excision of Large Intra-Abdominal Cysts in Children: Needle Hitch Technique

Laparoscopic surgery has both diagnostic and therapeutic advantages in the management of intra-abdominal cysts in children. Large cysts in small children pose technical challenges during laparoscopic surgery, requiring multiple incisions and advanced laparoscopic skills. This paper describes a novel laparoscopic technique using minimal manipulation for both aspiration and excision of the cyst. This simple, safe, and effective approach was used to achieve traction and facilitate excision of a large intra-abdominal cyst in a neonate and a young child.

Imaging Findings of Fetal-Neonatal Ovarian Cysts Complicated With Ovarian Torsion and Autoamputation

OBJECTIVE

Large nonresolving neonatal ovarian cysts may be a risk factor for complications such as torsion, mass effect, rupture, intracystic hemorrhage, and autoamputation. Torsed cysts and autoamputated cysts can cause a diagnostic dilemma. The objective of our study was to correlate the imaging findings of intrauterine ovarian torsion and autoamputated ovaries with their pathologic findings.

MATERIALS AND METHODS

We retrospectively analyzed the pre- and postnatal medical records, sonographic findings, operation notes, and pathologic reports of 15 patients with ovarian torsion. All patients had complex cysts noted on postnatal sonographic examination. A complex heterogeneous ovarian cyst was defined by the presence of a fluid-debris level indicating hemorrhage within the cyst, a retracting clot, septations with or without internal echoes, calcification, and a solid component.

RESULTS

On ultrasound examination, four cysts had solid components, and 11 were heterogeneous and had a fluid-debris level. Calcifications were seen in two patients. The mean patient age at the time of surgery was 3.9 months. Exploratory laparotomy was performed on all patients. Torsed ovaries were identified in five patients. Ten patients had ovaries that were floating free in the peritoneal cavity at the time of surgery. Histopathologic evaluation revealed that 11 of the cysts consisted of extensive hemorrhagic, necrotic autolytic tissue with dystrophic calcification. None of the cysts contained any ovarian tissue.

CONCLUSION

A complex heterogeneous ovarian cyst with a fluid-debris level indicating hemorrhage is a significant sonographic hallmark for the diagnosis of ovarian torsion. A calcified abdominal mass, with or without wandering, can be an autoamputated ovary.

Conservative management of a large neonatal ovarian cyst: a case report

We describe a case of a large simple neonatal ovarian cyst, which was managed successfully using "wait and watch" approach and serial ultrasound monitoring. A cystic lesion arising from right ovary was noted in antenatal ultrasound (USG) which was followed up with postnatal USG which revealed a large simple ovarian cyst without any complications. Patient was kept on expectant management with close clinical and USG monitoring. Cyst resolved spontaneously at 10 wk of age. A brief review of literature for likely aetio-pathogenesis and management is also presented.

Fetal ovarian cyst mimicking a CSF pseudocyst in the setting of shunt failure

Fetal ovarian cysts are common congenital lesions encountered in the neonatal population. These cysts are typically benign and rarely require any invasive intervention. Abdominal pseudocyst formation as a result of a ventriculoperitoneal shunt is a relatively infrequent occurrence and is similarly an uncommon cause of shunt failure. The authors present the case of a 4-month-old girl with shunted hydrocephalus who presented with shunt failure from a suspected abdominal pseudocyst that was found to be a fetal ovarian cyst.

Management of neonatal ovarian cysts and its effect on ovarian preservation

BACKGROUND/PURPOSE

Management of asymptomatic neonatal ovarian cysts varies. Some surgeons advocate initial observation, while others recommend immediate operation depending on cyst size and complexity. This study aims to compare outcomes of initial observation versus primary surgery, focusing on incidence of postnatal torsion and ovarian preservation.

METHODS

A retrospective study (1997-2012) of neonates with an ovarian mass was performed. Data on cyst size, ultrasound characteristics, clinical course, complications, and pathology were extracted.

RESULTS

Thirty-seven neonates with asymptomatic ovarian cysts were identified (N=25 observed, N=12 primary surgery). Overall, 12/25 (48%) observed had successful cyst regression, including 3/8 (38%) cysts ≥50mm and 6/15 (40%) complex. 13/25 patients (52%) underwent surgery for failure of cyst regression (11/13) or concern for interval torsion (2/13). Postnatal torsion occurred in 1/25 observation patients (4%), or 1/8 (13%) with cysts≥50mm. Overall rate of ovarian preservation between groups was not statistically different [6/8 (75%) observed versus 8/9 (89%) primary surgery; P=0.577]. Pathology found viable ovarian tissue in all oophorectomy specimens (N=3).

CONCLUSIONS

Postnatal torsion is rare. A period of observation spares half of neonates from an operation, without decreasing ovarian salvage. Initial management should consist of observation, regardless of size or complex characteristics. If operative intervention is necessary, ovary preserving techniques should be utilized.

US of the pediatric female pelvis

This review presents the normal and pathologic development of the gonads and genitourinary tract and addresses the role of ultrasonography in the diagnosis and management of gynecologic disorders of the pediatric pelvis, including ambiguous genitalia, prepubertal bleeding, primary amenorrhea, pelvic mass, and pelvic pain.

Prenatal diagnosis of fetal ovarian cyst: case report and review of the literature

Foetal ovarian cysts are the most frequently encountered intra-abdominal cystic masses diagnosed prenatally. The aetiology of foetal ovarian cysts is still unknown, but hormonal stimulation is generally considered to be responsible for the disease. The diagnosis is made by the exclusion of other cystic lesions confined to the foetal abdomen. In this article we report antenatally-detected foetal ovarian cyst with a review of the available literature. Antenatal ultrasonography (USG) revealed an abdominal cystic mass 41×33 mm in diameter in a 33-week gestation female foetus. The normal anatomy of other foetal abdominal organs suggested that an ovarian cyst was the most likely diagnosis. In the antenatal follow-up period, the cyst diameter increased with time. After delivery, USG scan confirmed the antenatal findings. Due to abdominal distension and respiratory distress, ovarian cystectomy was performed on the second postnatal day. The histopathological evaluation of the surgical material reported a serous cystadenoma of the ovary with non-malignant properties.

Neonatal Ovarian Cysts: Role of Sonography in Diagnosing Torsion

Introduction: The purpose of this case series was to determine the sonographic features of neonatal ovarian torsion. Materials and Methods: Seven surgically proven cases of neonatal ovarian cysts were included in this retrospective study. The patients were divided into 2 groups, torsion and non-torsion. These 7 patients were evaluated for the clinical presentation, sonographic features, surgical and pathological findings. The findings on follow-up sonography after surgery were also noted. Results: The sonographic appearance was variable. Of the 4 cases with torsion, 2 lesions had internal echoes with ‘fish-net appearance’. The other 2 lesions were predominantly cystic on the sonography with internal echoes and echogenic nodule. A calcific focus was present in 1 of these echogenic nodules. One of the cysts had fluid-fluid level. In the non-torsion group, only 1 lesion had mixed echogenic appearance. The other 2 lesions were cystic with low level internal echoes in 1 of the cysts. The surgical procedure performed in the torsion group was salpingo-oophorectomy in 2 patients and oophorectomy in 1 patient. In 1 patient, cystectomy was attempted without success. In the non-torsion group, only cystectomy was performed with preservation of normal ovaries, which was confirmed on follow-up sonography. Conclusion: The sonographic features of cysts with ‘fish-net appearance’, fluid-debris level and cysts with echogenic nodule favour torsion. The former sign has so far not been described as a sonographic predictor for neonatal ovarian torsion. Key words: Ultrasound, Ovary, Doppler, Fish-net appearance, Haemorrhage

Fetal-neonatal ovarian cysts--their monitoring and management: retrospective evaluation of 20 cases and review of the literature

OBJECTIVE

Neonatal ovarian cysts (NOC) are usually self-limiting structures. However, large or complex cysts may lead to severe complications. A standard guide to management, treatment and follow-up of NOC is not yet available. The aim of this study was to evaluate retrospectively the records of NOC patients from two medical centers.

METHODS

A total of 20 newborns with NOC were included in the study. The size and localization of the cyst, the age, the signs and symptoms at presentation, and the possible maternal and fetal-neonatal etiologic factors were recorded. Follow-up procedures and treatment modalities were evaluated.

RESULTS

The mean age at diagnosis was 34 gestational weeks. The cysts (mean size 53±15 mm) were predominantly in the right ovary (75%) and were evaluated as large cysts in 16 (80%) of the patients. In 5 of the patients with large cysts and in 1 of the 4 patients with small cysts, the cysts were evaluated as complex cysts. Torsion of the ovary was detected in five (25%) cases and these cases were treated surgically. Patients with simple cysts were closely followed by ultrasonography until the cysts disappeared.

CONCLUSION

To date, there is no precise guide for the monitoring and treatment of NOCs. Surgical treatment should always be performed in a way to protect the ovaries and to ensure future fertility. In our NOC series, it has been possible to apply a non-invasive follow-up program and minimally invasive surgical procedures.

Ovarian autoamputation in a neonate: a case report with literature review

A case of ovarian autoamputation in an asymptomatic neonate is presented. An abdominal cyst was detected in a 30-week-gestation fetus on an antenatal ultrasound scan (USS). Postnatal USS confirmed the presence of a cyst in the right pelvis and revealed it to be 3.2 cm in diameter. CT and MRI revealed cyst wall calcification and intracystic hemorrhage. To confirm the diagnosis and treatment, the cyst was surgically removed. During the operation, a free autoamputated right ovarian cyst was found and removed from the abdomen. Ovarian cyst autoamputation is an extremely rare complication. In this article, we review the infantile ovarian autoamputation cases reported in the literature and assess their diagnosis and therapeutic management.

Management of ovarian cysts during infancy: autoamputation presenting as a possible pitfall

The widespread use of routine antenatal ultrasound has relatively increased the frequency of intrauterine diagnosis of ovarian cysts. In utero adnexal torsion may present with subsequent autoamputation in some of these lesions. Prenatal and postnatal ultrasonographic findings, however, may not always be relevant in making the correct diagnosis. The authors report on two cases with prenatally-diagnosed hypoechogenic cystic masses. The cysts failed to resolve after a period of conservative management. A laparoscopic approach revealed ovarian autoamputation presenting as cystic mass. Preoperative ultrasound, abdominal CT and MRI failed to detect the presence of autoamputation. The present report discusses the possibility of an otherwise silent ovarian autoamputation, which may necessitate laparoscopic intervention for correct diagnosis, in neonates presenting with persistent ovarian cysts.

Ovarian reconstitution following laparoscopic decapsulation of congenital cyst

Laparoscopic management of congenital ovarian cysts is widely practiced but there is a dearth of information on the performance of the gonad where organ-preserving surgery is undertaken. Presented is a radiological diary documenting the progress of a complex congenital ovarian cyst from the antenatal period to a year post-laparoscopic decapsulation.

Transumbilical management for neonatal ovarian cysts

BACKGROUND/PURPOSE

Since Tan and Bianchi (Br J Surg. 1986;73:399) reported umbilical incision as an access for pyloromyotomy in infantile hypertrophic pyloric stenosis, many pediatric surgeons have used this approach for a number of other procedures. Because of the long pedicle with good mobility and the frequent intraabdominal position of the neonatal ovarian cyst, we attempted to manage it via the transumbilical route.

METHODS

All patients were treated under intubation general anesthesia. Semicircular infraumbilical incision was made, and the abdomen was entered through a transverse fascial incision. The partially collapsed cyst after aspiration was exteriorized through the incision for cystectomy, partial deroofing, or adnexectomy.

RESULTS

From May 2000 to December 2006, 6 female newborns with ovarian cysts were treated via the transumbilical route. There were no complications from surgery. The operation time and duration of hospital stay were short. The cosmetic appearance after the procedure was good.

CONCLUSIONS

The initial result suggests that transumbilical management for neonatal ovarian cysts may be a good alternative procedure when laparoscopic equipment is unavailable or experienced technique is lacking.