scholarly journals Three Cases of Immature Teratoma Diagnosed after Laparoscopic Operation

2014 ◽  
Vol 7 ◽  
pp. CCRep.S17455 ◽  
Author(s):  
Masakazu Nishida ◽  
Yasushi Kawano ◽  
Akitoshi Yuge ◽  
Kaei Nasu ◽  
Harunobu Matsumoto ◽  
...  
Keyword(s):  
Young Women ◽  
Ovarian Tumor ◽  
Mature Teratoma ◽  
Cystic Teratoma ◽  
Immature Teratoma ◽  
Mature Cystic Teratoma ◽  
Fluid Content ◽  
Laparoscopic Operation ◽  
Ovarian Cancers

While mature cystic teratoma of the ovary is the most common ovarian tumor in young women, immature teratoma is a very rare tumor, representing only 1% of all ovarian cancers. In the three cases presented here, young women who were suspected to have mature cystic teratoma, based on CT scan and MRI, were ultimately diagnosed with immature teratoma Ic (b) G1 after laparoscopic operation. They underwent salpingo-oophorectomy of the affected side only and have shown no sign of recurrence during follow-up. We sometimes encounter patients with immature teratoma who have no findings pointing to malignancy on CT or MRI. Generally, if the components of immature nerve cells that represent immature teratoma are very few, it is difficult to diagnose the entity as immature teratoma with imaging evaluations such as CT or MRI. In many hospitals, laparoscopic surgery is selected for patients with ovarian mature teratoma. Therefore, it is essential to attempt as much as possible not to disseminate the fluid content of the tumor into the intra-abdominal space during laparoscopic operation, because in rare cases the tumor turns out not to be benign mature teratoma.

scholarly journals Immature Teratoma and Mature Cystic Teratoma

2021 ◽  
Vol 5 (2) ◽  
pp. 139-147
Author(s):  
Nova Fenita Sari ◽  
RZ Nizar
Keyword(s):  
Germ Cell ◽  
Mature Teratoma ◽  
Relevant Literature ◽  
Primordial Germ Cells ◽  
Germ Cell Tumors ◽  
Cystic Teratoma ◽  
Residual Tumor ◽  
Scientific Paper ◽  
Immature Teratoma ◽  
Mature Cystic Teratoma

Introduction : Germ cell tumors arise from primordial germ cells and account for about 30% of all ovarian tumors. More than 95% of this group are benign dermoid cysts (mature cystic teratoma) and the remaining 5% are malignant. Ovarian teratomas represent 15% to 20% of ovarian germ cell tumors. Teratomas are classified as mature or immature and often consist of several embryological layers. While the mature type is benign, the immature type is more aggressive.Objective : Based on the above, this article will review about immature teratoma and mature cystic teratoma of the ovary. Material and methods : The method of writing this scientific paper is a literature review. The data used are sourced from relevant literature and in accordance with the topics discussed.Result : Teratomas are a common form of germ cell tumors. Teratomas are histologically defined as tumors containing tissue derived from all germ cell layers: ectoderm, mesoderm, and endoderm. Teratomas are classified as immature teratoma, mature teratoma and monodermal teratoma. Conclusion : Teratomas are usually asymptomatic and if there are symptoms, they tend to be non-specific. In patients with no residual tumor after surgery, the survival rate is 90-100%.Keywords: Teratoma, Immature Teratoma, Mature Cystic Teratoma

scholarly journals Ovarian Mature and Immature Teratomas in Monozygotic Twins: A Case Report of Simultaneous Presentation

2017 ◽  
Vol 2017 ◽  
pp. 1-4
Author(s):  
Daisuke Shigemi ◽  
Naoki Kawai ◽  
Toshiyuki Takeshita
Keyword(s):  
Ovarian Tumor ◽  
Mature Teratoma ◽  
Monozygotic Twins ◽  
Cystic Teratoma ◽  
Monozygotic Twin ◽  
Simultaneous Presentation ◽  
Immature Teratoma ◽  
Clinical Report ◽  
Rare Tumor ◽  
Old Japanese

Mature cystic teratoma is one of the most common kinds of ovarian tumor, and immature teratoma is a rare tumor, representing less than 1% of all ovarian teratomas. Although there are some reports about familial occurrences of ovarian tumors, literature concerning the clinical cases of monozygotic twins is rare. We report the 5-year clinical courses of a 12-year-old Japanese girl with a recurrent bilateral ovarian mature teratoma and her monozygotic twin with a unilateral ovarian mature teratoma and contralateral ovarian immature teratoma. This is the first clinical report on mature and immature teratomas of the ovary in monozygotic twins. Our cases support future clarification of the molecular mechanism and pathogenesis of teratoma.

scholarly journals Trichoepithelioma Arising in an Ovarian Mature Cystic Teratoma

2016 ◽  
Vol 2016 ◽  
pp. 1-5
Author(s):  
Takashi Suzuki ◽  
Satoru Nakayama ◽  
Haruka Muto ◽  
Shinichi Shimizu ◽  
Yoshiro Otsuki ◽  
...  
Keyword(s):  
Fdg Pet ◽  
Cystic Teratoma ◽  
Standardized Uptake Value ◽  
Japanese Woman ◽  
Mature Cystic Teratoma ◽  
Outer Root Sheath ◽  
Epithelial Tumor ◽  
Positron Emission ◽  
Old Japanese

Here, we report an extremely rare case of trichoepithelioma (TE)—a benign epithelial tumor originating from the outer root sheath of a hair follicle—arising in an ovarian mature cystic teratoma (MCT) with fluorodeoxyglucose-positron emission tomography (FDG-PET) findings. A 48-year-old Japanese woman presented to our hospital for her annual follow-up of adenomyosis. Ultrasonography and magnetic resonance imaging revealed a left ovarian tumor with irregular-shaped septum, which was suspicious of malignancy. However, tumor marker levels were within normal range. On FDG-PET, the maximum standardized uptake value (SUVmax) of the tumor was 2.9. Laparotomy with left salpingooophorectomy was performed. Pathologic examination revealed the probability of TE, rather than basal cell carcinoma (BCC), arising in an ovarian MCT. After five years of follow-up, the patient had no sign of recurrence. The FDG-PET SUVmax was low in TE, as with other benign tumor. However, future investigation is needed to evaluate the findings of FDG-PET imaging in TE cases.

scholarly journals Squamous Cell Carcinoma in Dermoid Cyst

2015 ◽  
Vol 6 (3) ◽  
pp. 133-135
Author(s):  
Lakshmidevi Muralidhar ◽  
Pramila Pandey
Keyword(s):  
Squamous Cell Carcinoma ◽  
Cell Carcinoma ◽  
Dermoid Cyst ◽  
Malignant Transformation ◽  
Squamous Cell ◽  
Mature Teratoma ◽  
Cystic Teratoma ◽  
Mature Cystic Teratoma ◽  
Reproductive Age ◽  
Age Group

ABSTRACT Mature cystic teratoma or dermoid cyst constitutes about 10 to 20% of all ovarian tumors in the reproductive age group. Malignant transformation is seen in these tumors in about 1 to 2%. Squamous cell carcinoma (SCC) constitutes about 75 to 85% of malignant transformation. Imaging characters and serum tumor markers are two important modalities to differentiate benign and malignant lesions. We are presenting a rare case of SCC arising from mature teratoma. The aim of this presentation is to stress on the significance of preoperative risk assessment of SCC in mature cystic teratoma in postmenopausal age group for optimal treatment. How to cite this article Muralidhar L, Venkatesh S, Pandey P. Squamous Cell Carcinoma in Dermoid Cyst. Int J Infertil Fetal Med 2015;6(3):133-135.

scholarly journals Collision Tumors in Ovary: Case Series and Literature Review

2019 ◽  
pp. 1-10
Author(s):  
Borges A ◽  
Loddo A ◽  
Martins A ◽  
Peiretti M ◽  
Fanni D ◽  
...  
Keyword(s):  
Literature Review ◽  
Ovarian Tumor ◽  
Case Series ◽  
Mucinous Cystadenoma ◽  
Cystic Teratoma ◽  
Mature Cystic Teratoma ◽  
Adequate Treatment ◽  
Collision Tumors ◽  
Brenner Tumor ◽  
Malignant Lesions

Histologically distinct tumors that coexist in an organ without any histological admixture at their interface are denominated collision tumors. We report 3 cases of colliding mature cystic teratoma with mucinous cystadenoma and a case of mature cystic teratoma colliding with benign Brenner tumor in the ovary. We also provide a literature review based on 35 previously published ovarian collision cases. Ovarian tumors from all classes, benign, borderline and malignant lesions may collide. Both our case series and the literature review indicate that ovarian tumor collisions tend to be clinically and ultrasonographically/radiologically unrecognized. The awareness among surgeons, radiologists and pathologists of this rare phenomenon and histological recognition are crucial in order to offer adequate treatment to patients. There is a need to identify novel and more specific imaging clues pointing towards collision tumors in the ovary.

scholarly journals A rare case of extragonadal immature teratoma mimicking as subserosal pedunculated myoma

2020 ◽  
Vol 9 (6) ◽  
pp. 2649
Author(s):  
Aditi Rai ◽  
Ramesh Bettaiah ◽  
Minal Kumbhalwar ◽  
Isha Rani ◽  
Hema Garlapati
Keyword(s):  
Abdominal Pain ◽  
Rare Case ◽  
Mature Teratoma ◽  
Young Patients ◽  
Immature Teratoma ◽  
Primary Surgery ◽  
Ovarian Cancers ◽  
Histopathologic Diagnosis ◽  
Preservation Of Fertility ◽  
Cell Malignancy

Immature teratomas are usually derived from a malignant transformation of mature teratoma. The pure immature teratoma accounts for less than 1% of all ovarian cancers. It is the second most common germ cell malignancy and accounts for 10-20% of all ovarian malignancies seen in women younger than 20 years of age. Extragonadal origin are extremely rare and the most common extragonadal site of these teratomas is the omentum. We hereby describe a case report of a 29-year-old lady who presented with abdominal pain and her imaging with an ultrasound revealed a mass with features suggestive of a subserosal fibroid. She underwent a laproscopic myomectomy. A histopathologic diagnosis of Immature teratoma was made following her primary surgery. She subsequently underwent a staging laparotomy which was followed by chemotherapy. Immature teratomas predominantly occur in young patients, and preservation of fertility is an important factor in its management. Treatment should be initiated as soon as possible after surgery, preferably within 7-10 days, in those patients who require chemotherapy.

scholarly journals Malignant transformation of mature cystic teratoma of the ovary including three cases occurring during follow-up period

2008 ◽  
Author(s):  
Ken Yamaguchi ◽  
Masaki Mandai ◽  
Ken Fukuhara ◽  
Toshihiro Higuchi ◽  
Junzo Hamanishi ◽  
...  
Keyword(s):  
Malignant Transformation ◽  
Cystic Teratoma ◽  
Mature Cystic Teratoma
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