scholarly journals Genetic Profiling of Malignant Melanoma Arising from an Ovarian Mature Cystic Teratoma: A Case Report

2021 ◽  
Vol 22 (5) ◽  
pp. 2436
Author(s):  
Kohei Nakamura ◽  
Eriko Aimono ◽  
Reika Takamatsu ◽  
Shigeki Tanishima ◽  
Tomonari Tohyama ◽  
...  
Keyword(s):  
Malignant Melanoma ◽  
Malignant Tumors ◽  
Cystic Teratoma ◽  
Homozygous Deletion ◽  
Mature Cystic Teratoma ◽  
Genetic Profiling ◽  
Improve Treatment ◽  
The Status ◽  
Genetic Mechanisms ◽  
Targeted Gene Sequencing

Ovarian mature cystic teratomas comprise tissues derived from all three germ layers. In rare cases, malignant tumors arise from ovarian mature cystic teratoma. A variety of tumors can arise from mature cystic teratoma, among which primary malignant melanoma (MM), for which no molecular analyses such as genomic sequencing have been reported to date, is exceedingly rare, thereby limiting possible therapeutic options using precision medicine. We used targeted gene sequencing to analyze the status of 160 cancer-related genes in a patient with MM arising from an ovarian mature cystic teratoma (MM-MCT). KRAS amplification and homozygous deletion in PTEN and RB1 were detected in tumor samples collected from the patient. No KRAS amplification has been previously reported in cutaneous MM, indicating that the carcinogenesis of MM-MCT differs from that of primary cutaneous melanomas. A better understanding of the underlying genetic mechanisms will help clarify the carcinogenesis of MM-MCT. In turn, this will enable treatment with novel targeting agents as well as the initial exploration of gene-based precision oncological therapies, which aim to improve treatment outcomes for patients with this disease.

scholarly journals Primary malignant melanoma arising from ruptured ovarian mature cystic teratoma with elevated serum CA 19–9: a case report and review of literature

2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Won Ku Choi ◽  
Dong Hyun Lee ◽  
Dong Hyu Cho ◽  
Kyu Yun Jang ◽  
Kyoung Min Kim
Keyword(s):  
Malignant Melanoma ◽  
Malignant Tumors ◽  
Elevated Serum ◽  
Cystic Teratoma ◽  
Surgical Excision ◽  
Mature Cystic Teratoma ◽  
Primary Malignant Melanoma ◽  
Cystic Masses ◽  
Strong Immunoreactivity ◽  
Pleomorphic Cells

Abstract Background Ovarian 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 presentation A 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. Conclusion We report a rare case of primary malignant melanoma derived from an ovarian mature cystic teratoma.

31. A malignant melanoma arising in a mature cystic teratoma

Pathology ◽  
2014 ◽  
Vol 46 ◽  
pp. S116
Author(s):  
Kianoosh Noori Sarnie ◽  
Afaf Haddad ◽  
Denys Fortune
Keyword(s):  
Malignant Melanoma ◽  
Cystic Teratoma ◽  
Mature Cystic Teratoma

scholarly journals Ovarian Germ Cell Tumor – Histopathological and statistical analysis

2013 ◽  
Vol 3 (6) ◽  
pp. 441-446
Author(s):  
A Ghosh ◽  
D Magar Gharti ◽  
B Sathian ◽  
R Narasimhan ◽  
Op Talwar
Keyword(s):  
Germ Cell ◽  
Germ Cell Tumor ◽  
Malignant Tumors ◽  
Germ Cell Tumors ◽  
Cystic Teratoma ◽  
Cell Tumor ◽  
Ovarian Tumors ◽  
Mature Cystic Teratoma ◽  
Age Group ◽  
Malignant Germ Cell Tumors

Background: Ovarian cancers are common among females. The ovarian tumors are classified according to its histogenesis. In the present study, we analyzed the germ cell ovarian tumors reported in our institute. Materials and Methods: This study was a hospital based retrospective study. All ovarian germ cell tumor reported from Jan 2001 to Feb 2013 were retrieved and analyzed. The specimens were routinely processed and the slides were stained with H&E and special stains wherever required. Results: A total of 340 cases of ovarian tumors were reported and 150 cases (44%) were of germ cell origin. We had 137 cases of benign and 13 cases of malignant germ cell tumors. Most common subtype was mature cystic teratoma comprising 125 cases. Among the malignant cases, the most common was immature teratoma (5 cases). Age range in our series was from 8 to 82 years (mean 28 years). The most common age group affected was 21-30 years. Most of the malignant cases (76.9%) were in less than 30 years. Among the malignant cases majority (84.6%) were more than 10 cm in size. None of the malignant germ cell tumors were bilateral. Conclusion: Among germ cell tumors of ovary, mature cystic teratoma is the most common tumor and malignant subtypes are uncommon. Malignant tumors tend to occur in younger age group. DOI: http://dx.doi.org/10.3126/jpn.v3i6.8990 Journal of Pathology of Nepal (2013) Vol. 3, 441-446

scholarly journals Histopathological diagnosis of ovarian mass

2018 ◽  
Vol 8 (1) ◽  
pp. 1261-1264
Author(s):  
Shahali Shadab ◽  
Tadayon Tadayon
Keyword(s):  
Malignant Tumors ◽  
Histopathological Examination ◽  
Age Groups ◽  
Germ Cell Tumors ◽  
Cystic Teratoma ◽  
Mature Cystic Teratoma ◽  
Benign Tumors ◽  
Histopathological Diagnosis ◽  
Hospital Data ◽  
Ovarian Masses

Background:  Ovarian cysts are common forms of gynecological problems that can be range from physiological cysts to highly aggressive neoplastic lesions. The purpose of this study was to investigate prevalence and frequency of different histopathological patterns of ovarian lesions and their correlation with various parameters in Ahvaz, Iran.Materials and Methods: This is the retrospective study of patients with the ovarian masses at Ahvaz Imam Khomeini Hospital from 2010 - 2015. The relevant clinical details about the patient were retrieved from hospital data. Clinical characteristics of patients such as patient's age, presenting signs and symptoms, histopathological diagnosis, mass type, mass subtype, size of cysts and ovary which is involved were noted. Results: Two hundred sixty seven specimens of ovarian tumor obtained for histopathological examination. Of these, 163(61.0%) were tumor like, 96(36.0%) were benign tumor and 8(3.0%) were malignant. The most common tumor like conditions was Corpus luteum cyst (43.4% cases), among benign and malignant tumors, mature cystic teratoma (17.2% of total) and Epithelial tumors (n=4) were most common. There is a statistically significant positive relation between age and various ovarian masses. (P= 0.002). Histopathological diagnosis wasn't correlated with ovarian involvement.Conclusion: Benign tumors are more common than malignant tumors in all age groups. Germ cell tumors followed by surface epithelial cell tumors are the commonest tumor. Mature cystic teratoma was the most common tumor. Unilaterality is more frequently seen in ovarian tumors and various tumors are seen in various age groups.

Primary malignant melanoma arising from ovarian mature cystic teratoma: A case report and literature review

2010 ◽  
Vol 53 (9) ◽  
pp. 846 ◽  
Author(s):  
Jei-Won Moon ◽  
Ji Young Kim ◽  
You Jung Shin ◽  
Mi Young Lee ◽  
Hyuck Jae Choi ◽  
...  
Keyword(s):  
Case Report ◽  
Malignant Melanoma ◽  
Literature Review ◽  
Cystic Teratoma ◽  
Mature Cystic Teratoma ◽  
Primary Malignant Melanoma

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

2019 ◽  
Vol 3 (1) ◽  
pp. 54-56
Author(s):  
Shankar Bastakoti ◽  
Nirmal Lamichhane ◽  
Sadina Shrestha ◽  
Ishan Dhungana
Keyword(s):  
Smooth Muscle ◽  
Laparoscopic Adrenalectomy ◽  
Adnexal Mass ◽  
Malignant Tumors ◽  
Cystic Teratoma ◽  
Mature Cystic Teratoma ◽  
Immunocompromised Patients ◽  
Rare Tumor ◽  
Adrenal Incidentalomas ◽  
Ebv Infection

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.

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