Mature Cystic Teratoma Of Ovary Research Articles

Meningioma in mature cystic teratoma of the ovary: clinical and computed tomography findings

BackgroundMature cystic teratoma (MCT) with meningioma of the ovary is a very rare benign tumor. There is only 3 reports of this disease until June 2019. The aim of the present study was to describe a ovarian mature cystic teratoma containing meningioma and nests of neuroblasts in a 15-year-old girl.MethodsThe method used in the present study consists of description of the clinical history, image lab features, and pathological result.ResultsThe patient complained of a 2-month history of irregular vaginal bleeding. Abdominal computed tomography (CT) showed a large oval cystic-solid mass with septations and fat density shadow, in abdomen pelvic cavity. The cystic part was the main component in the mass. The tumoral solid parts and its internal division could be seen intensified from slight to moderate on contrast-enhanced CT images compared with those on precontrast images, and the solid parts showed heterogeneous enhancement. Neighbouring intestinal tract and the uterus displaced by compression. The pathological examination confirmed the diagnosis.ConclusionsThe clinical feature of ovarian mature cystic teratoma with meningioma includes a lack of specificity. Only meticulous recording of the gross features, histopathological examination including immunohistochemistry and supportive clinical and radiological findings to arrive at a correct diagnosis in case of unconventional tumours. If necessary, preoperative puncture can be performed.

Squamous Cell Carcinoma from Abscessed, Mature Cystic Ovarian Teratoma – A Case Report and Literature Review

Malignant transformation of mature cystic ovarian teratoma is a scarce eventuality, only rare cases being reported so far. Furthermore, development of this transformation in the setting of an abscessed tumor is even scarcer. The aim of this study was to report the case of a 47-year-old patient submitted to surgery for such a lesion. The patient was investigated for diffuse pelvic pain and diagnosed with a 10×7×8 cm mass at the level of the left adnexa with imaging findings suggesting the presence of an ovarian teratoma. The patient was submitted to surgery involving a total hysterectomy with bilateral adnexectomy, lymphadenectomy and peritoneal biopsies. The histopathological examination demonstrated the presence of squamous cell carcinoma areas transformation in association with areas of abscess. Postoperatively the patient was submitted to six cycles of platinum-based chemotherapy and concurrent external radiotherapy. At one-year follow-up she is free of recurrent disease. Although malignisation of mature cystic ovarian teratoma is a rare event, it should not be omitted when mature ovarian teratoma is suspected; however, association between malignant transformation and abscess is a scarcer eventuality.

Pulmonary-derived papillary adenomatoid proliferation arising in ovarian mature cystic teratoma

Introduction: Primary lung papillary neoplasms are very rare and less than 30 cases of papillary adenomas have been described. Lung-derived papillary lesions arising in ovarian mature cystic teratoma are extremely rare and, to the best of the authors’ knowledge, only one case has been reported. Herein they report the second case and discuss the differential diagnoses. Case Report: A 32-year-old woman presented with bilateral ovarian mature cystic teratoma (MCT) (“dermoid”). The right side teratoma, very close to the thyroid tissue (struma ovarii), presented a morphologically benign mass, with complex papillary structures and psammoma bodies, which mimicked a thyroid papillary carcinoma (TPC). Immunohistochemistry showed diffuse positive staining with EMA, cytokeratins, and patchy positive staining with TTF1 and surfactant apoprotein A. Thyroglobulin, PAX-8, HMBE1, chromogranin, synaptophysin, CD56, CEA, p63, and BRAF were negative. The work-up for metastasis was negative. Close clinical and instrumental follow-up was decided following consultation with the lung and gynaecological multidisciplinary team. Conclusion: This is the second case of benign appearing, lung-derived papillary neoplasm arising in an ovarian MCT. In view of the clinical context, histological criteria used in lung pathology cannot be applied with confidence in this case. The most appropriate term would be pulmonary-derived papillary adenomatoid proliferation. This novel entity will be useful for pathologists and clinicians in diagnosing and differentiating this very rare disease from other lesions arising in ovarian teratomas.

Appendix invasion of squamous cell carcinoma arising from ovarian mature cystic teratoma and resistant to combination chemotherapy with docetaxel and oxaliplatin: a case report

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Follicular variant of thyroid papillary carcinoma arising from ovarian mature cystic teratoma: a case report

Follicular variant of thyroid papillary carcinoma arising from ovarian mature cystic teratoma: a case report

Bilateral Ovarian Mature Cystic Teratoma- A Rare Case Presentation

The incidence of bilateral mature cystic teratoma of the ovary is only 10%. Ovarian mature cystic teratomas are common, benign, pelvic tumours and can be easily detected by ultrasonography. Recurrent ovarian teratomas are very rare, and cases of bilateral teratomas are even rarer. So, it is advisable to routinely check the ovary contralaterally during the surgical procedure along with careful pelvic sonographic examination of both the ovaries. Inadvertent extensive surgery should be avoided in this benign condition that might further compromise the fertility of young patients. We report a rare case of bilateral mature cystic teratoma of the ovary in a 28-year-old female, who presented to the gynaecologic outpatient department with complaints of intermittent dull aching, diffuse lower abdominal pain and dysmenorrhea for three months. Transvaginal ultrasonography revealed bilateral complex ovarian masses that raised suspicion of dermoid cysts with hypoechoic endometrial collections. Her Cancer Antigen 125 (CA-125) was normal. A bilateral ovarian cystectomy was performed and histopathology confirmed the diagnosis. This case highlights a rare occurrence of bilateral ovarian mature cystic teratoma, where cystectomy was performed to preserve the fertility in a young female.

Mature cystic teratoma of the uterus presenting as an endometrial polyp in a patient with a history of ovarian mature cystic teratoma with gliomatosis peritonei and ovarian endometriosis: a case report

Teratomas of the uterus are rare neoplasms and are usually polypous lesions that present clinically as abnormal uterine bleeding. Gliomatosis peritonei (GP) is characterized by peritoneal implants of non-neuronal glial tissue and is a rarely-encountered complication of ovarian teratomas. To the best of our knowledge, mature cystic teratoma of the uterus as well as ovarian teratoma with GP and ovarian endometriosis are rare phenomena. Here, we report a case of mature cystic teratoma of the uterus presenting as an endometrial polyp in a patient with a history of ovarian teratoma with GP and ovarian endometriosis.

Is There a Role of Elevated CA 19-9 Levels in the Evaluation of Clinical Characteristics of Mature Cystic Ovarian Teratomas? A Systematic Review and Meta-analysis.

The role of preoperative CA 19-9 levels in patients with ovarian mature cystic teratoma (MCT) and the association of elevated levels of the biomarker with patients’ and tumor characteristics were evaluated. Four electronic databases were searched for articles published up to September 2019. Trials that evaluated the significance of elevated CA 19-9 in patients with ovarian MCTs and publications with > 20 patients were considered eligible for inclusion. Seven studies that included 995 patients with an ovarian MCT who were evaluated with elevated (n = 364) or normal (n = 631) CA 19-9 levels were included. Mean tumor size was significantly increased in patients with elevated CA 19-9 levels (p = 0.038). The rate of ovarian torsion was significantly increased in the elevated CA 19-9 group (p = 0.04). The present study highlights the importance of CA 19-9 as a marker in the diagnosis of MCT, and a meta-analysis supports that it could raise a high degree of clinical suspicion of early recognition of torsion and early surgical management due to complications related to increased size. Nonetheless, the diagnostic value of CA 19-9 is still limited and CA 19-9 can still serve only as a supplementary diagnostic tool in patients with MCTs.

Primary malignant melanoma arising from ruptured ovarian mature cystic teratoma with elevated serum CA 19\u20139: a case report and review of literature

BackgroundOvarian mature cystic teratomas comprise tissues derived from all three germ layers. In rare incidences, malignant tumors may arise from ovarian mature cystic teratoma, which occurs in 0.2–1.8% of cases. A variety of tumors can arise within mature cystic teratoma, among which malignant melanoma is exceedingly rare.Case presentationA 42-year-old woman presented with abdominal pain. Transvaginal ultrasonography showed mixed echogenic cystic masses in both ovaries. Her serum cancer antigen (CA19–9) level was elevated at 29,770 U/ml. Surgical excision was performed. Histologic examination showed infiltrating nests of pleomorphic cells with prominent nucleoli and black pigments in the background of a mature cystic teratoma. These pleomorphic cells showed strong immunoreactivity for Melan-A and HMB-45. The patient was re-evaluated and the possibility of a melanoma at any other site was ruled out. Based on these findings, we concluded that the malignant melanoma originated from the ovarian mature cystic teratoma.ConclusionWe report a rare case of primary malignant melanoma derived from an ovarian mature cystic teratoma.

Adrenal Leiomyoma: a Rare Tumor Presented as an Incidentaloma in a Women with Ovarian Mature Cystic Teratoma

Adrenal leiomyoma is a rare neoplasm and usually associated with adrenal vein or its tributaries. These are benign in nature and are composed of smooth muscle cells. A sixty years Normotensive, non-HIV lady presented with right adnexal mass diagnosed as Mature Cystic Teratoma along with adrenal incidentalomas for which laparoscopic adrenalectomy was done and histopathology diagnosis was Leiomyoma. These are more common in immunocompromised patients especially HIV and or EBV infection. Adrenal incidentalomas can have a hormone secreting functions or they can be malignant tumors hence a proper evaluation and treatment should be performed.

Utility of the "floating ball sign" in diagnosis of ovarian cystic teratoma.

Objective:To evaluate the incidence of the “floating ball” sign in cross-sectional imaging modalities in patients with ovarian teratoma, and to investigate the relationship between the morphologic features of the teratoma and this sign.Materials and Methods:Preoperative computed tomography and magnetic resonance imaging studies of 112 women with a pathologic diagnosis of ovarian mature cystic teratoma (MCT) were reviewed for the presence of the floating ball sign. Tumor size, tumor characteristics and the number, size, and characteristics of floating globules were evaluated.Results:In 112 patients (mean age 35.5±16 years, range 5-84 years), 118 ovarian MCTs were diagnosed pathologically. The floating ball sign was demonstrated in cross-sectional imaging in 30 (25.4%) patients. Among 2 of them, MCT was associated with malignancy (squamous cell carcinoma). There was a significant relationship between the floating ball sign, tumor size, and the wall thickness of the tumor (p=0.003 and p=0.018, respectively). In linear regression analysis, a similarly significant relationship was found between the presence of this sign and tumor size and patient age (p=0.003 and p=0.035, respectively).Conclusion:The floating ball sign, as a pathognomonic sign for the diagnosis of ovarian teratomas, seems to be more common than is known. Although this sign is almost always seen in MCTs, it may rarely be seen in teratomas with malignant transformation. The relationship of this sign with the characteristics of the tumor can provide an insight into the occurrence of these balls.

Malignant melanoma arising within ovarian mature cystic teratoma

Mature cystic teratomas are frequently encountered neoplasms of the ovary that comprise of tissues derived from all three germ layers. They are benign neoplasms with malignant transformation noted rarely in around 0.1 to 3% cases. Among the various transformations, malignant melanoma is one of the least commonly encountered. Here, we report a case of 41 years old female with malignant melanoma arising within mature cystic teratoma.

Case of Squamous Cell Carcinoma Transformation in Ovarian Mature Cystic Teratoma

Mature cystic teratoma (MCT) is the commonest benign tumour arising in an ovary. Malignant transformation in a MCT of ovary is exceptionallyrare, seen only in1-2% cases.The most common malignant transformation in a benign teratoma of ovary is squamous cell carcinoma. The other malignant transformations in teratoma include adenocarcinoma, melanoma and basal cell carcinoma. The patients having this malignant transformation in teratoma have a very low 5-year survival rate of 20% approximately. Here; we describe a case of advanced-stage squamous cell carcinoma arising in a mature cystic teratoma in a 34-year-old woman.This solid high grade malignancy was missed in the pre-operative imaging which showed a right adnexal mass with echogenic foci within and septations, and was reported as a dermoid cyst. The intraoperative frozen section too taken from the thin portion of the cyst wall was reported as cystic teratoma. However in the staging laparotomy,right salpingo-oophorectomy and left oophorectomy, specimen the patient was reported to have moderately differentiated squamous cell carcinoma arising in a benign mature cystic teratomawith extensive tumour necrosis with omental tumour deposits.In view of initial incomplete surgery and advanced stage, decision of completion cytoreductive surgery was taken. The patients with mature cystic teratoma with high age (post-menopausal), a size of more than 10 cm and increased serum tumour markers should be suspected to have a malignant transformation and should be investigated thoroughly.

Carcinoid Tumor on Mature Cystic Ovarian Teratoma in A Young Woman

Carcinoid Tumor on Mature Cystic Ovarian Teratoma in A Young Woman

Clinical features and prognostic factors associated with malignant transformation of ovarian mature cystic teratoma

Clinical features and prognostic factors associated with malignant transformation of ovarian mature cystic teratoma

A difficult-to-treat case of anti-N-methyl-d-aspartate receptor encephalitis associated with an ovarian mature cystic teratoma

A difficult-to-treat case of anti-N-methyl-d-aspartate receptor encephalitis associated with an ovarian mature cystic teratoma

Squamous cell carcinoma arising in an ovarian mature cystic teratoma: A case report

Pure primary squamous cell carcinoma (SCC) of the ovary is extremely rare. SCC can also arise in a mature cystic teratoma or dermoid cyst, in an ovarian endometrioma or in a brenner’s tumor, but such malignant transformations are also quite rare. Development of SCC in a mature cystic teratoma (MCT) has been reported sporadically in less than 2% cases only. Here in our present study, we are reporting such a rare case of 65 years old postmenopausal woman who was diagnosed as having squamous cell carcinoma developed in a mature cystic teratoma of the ovary at our institute. This diagnosis was given on the basis of clinical (patient’s history and examination), radiological (CT scan) and pathological (histopathology report) findings. We are also going to discuss other similar cases with review of literature. The only aim of this present study is to share our experience of such rare diagnosis with others.

Recurrent Cases of Ovarian Mature Cystic Teratoma

Recurrent Cases of Ovarian Mature Cystic Teratoma

Comparison between Laparoendoscopic Single-Site and Conventional Laparoscopic Surgery in Mature Cystic Teratoma of the Ovary.

Objective:The objective of the study is to compare the intra- and post-operative outcomes of laparoendoscopic single-site surgery (LESS) and conventional laparoscopic surgery (CLS) in mature cystic teratoma (MCT) of the ovary.Methods:We reviewed 254 patients who underwent surgery (cystectomy) for ovarian MCT from March 1, 2014, to August 31, 2016. During the study period, 216 patients underwent LESS and 38 patients underwent CLS. The outcome measures included operation time, estimated blood loss, changing hemoglobin (Hb) level, postoperative pain, and complications. Statistical analysis was performed using SPSS 24.Results:There was no statistically significant difference in age, body mass index, sexual experience, cyst size, operative time, adhesiolysis, preoperative Hb, Hb changes, postoperative pain scores (visual analog scale), hospital days, and complications between the two groups. In emergent situation, the frequency of CLS was high as three cases (7.9%) versus one case (0.5%, P = 0.007) with LESS. As the year progressed, the frequency of LESS increased. There were one case of re-operation for bleeding control and transfusion, one case of postoperative peritonitis and transfusion, and one case of postoperative transfusion in LESS. During LESS, additional port(s) was/were created in 13 cases (6.0%, P = 0.249).Conclusions:LESS is not inferior to CLS in MCT surgery, and LESS is useful for the surgery of MCT. Our study demonstrates that LESS confers feasibility, convenience, and safety regarding cystectomy of MCT.

A Case of Struma Ovarii Diagnosed by Cytology during Laparoscopic Surgery

We report a case of pure struma ovarii tumor diagnosed by cytology during laparoscopic surgery. The patient was a 34-year-old Japanese woman, gravida 1, para 1, who had the left adnexal mass, and was pre-operatively diagnosed as left ovarian endometriotic cyst or mature cystic teratoma by magnetic resonance imaging findings. She underwent laparoscopy, and the content of the left ovarian cystic tumor was found to be yellow gelatinous material, suggesting mature cystic teratoma. The imprint cytology of the tumor showed benign glandular pattern, suggesting struma ovarii. Histopathological findings led us to the diagnosis of pure struma ovarii with positive reactions for thyroglobulin and thyroid transcription factor-1. No metastases or disseminated lesions were detected. The patient has no recurrent signs 7 months after the operation.