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 GCT-14. SECOND-LOOK SURGERY FOR INTRACRANIAL GERM CELL TUMORS

2020 ◽  
Vol 22 (Supplement_3) ◽  
pp. iii330-iii330
Author(s):  
Hideki Ogiwara
Keyword(s):  
Germ Cell ◽  
Tumor Markers ◽  
Mature Teratoma ◽  
Germ Cell Tumors ◽  
Residual Tumor ◽  
Complete Response ◽  
Immature Teratoma ◽  
Total Resection ◽  
Mixed Germ Cell Tumor ◽  
Second Look

Abstract OBJECTIVE The authors present their experiences of second-look surgery in patients with intracranial GCTs who showed less than complete response despite normalizing or decreasing tumor markers after chemotherapy. METHODS Retrospective review of 14 patients who underwent second-look surgery for an intracranial GCT was performed. RESULTS Of 40 consecutive patients with newly diagnosed intracranial GCTs treated between August 2003 and 2019, 14 patients (35%) underwent second-look surgery. The mean age was 9.2 years. The initial diagnoses were mixed germ cell tumor in 6, immature teratoma in 4, yolk sac tumor in 2, and germinoma 2. Second-look surgery was performed after 1–3 courses of chemotherapy. Magnetic resonance imaging (MRI) at the surgery demonstrated increasing residual tumor in 8 and stable residual tumor in 6. Tumor markers were normalized in 10 and nearly-normalized in 4. Gross total resection was achieved in 12 patients and near-total resection in 2. Histopatholgy at second-look surgery revealed mature teratoma in 6, immature teratoma in 3, fibrosis with atypical cells in 2, and fibrosis in 3. Eleven patients subsequently underwent additional chemo-radiation therapy according to the initial diagnosis. All patients are alive with no evidence of recurrence with a mean follow-up of 69 months. CONCLUSIONS Second-look surgery plays an important role in the treatment of intracranial GCTs. Surgery may be encouraged at a relatively early phase after chemotherapy when the residual tumor increases or does not change the size despite normalized or nearly-normalized tumor markers in order to achieve complete resection and improve the outcome.

scholarly journals Simultaneous intracranial and testicular germ cell tumors: illustrative case

2021 ◽  
Vol 1 (3) ◽  
Author(s):  
Lei Han ◽  
Jie Lu ◽  
Luxiong Fang ◽  
Songtao Qi ◽  
Ye Song
Keyword(s):  
Germ Cell ◽  
Mature Teratoma ◽  
Germ Cell Tumors ◽  
Testicular Tumor ◽  
Cystic Teratoma ◽  
Pineal Region ◽  
Illustrative Case ◽  
Testicular Germ Cell Tumors ◽  
Testicular Germ Cell ◽  
First Case

BACKGROUNDSimultaneous intracranial and testicular germ cell tumors (GCTs) are extremely rare, leading to a lack of adequate experience in their treatment. Therefore, the authors report a case of this kind of GCT.OBSERVATIONSA 5-year-old boy was admitted to the hospital with headache and vomiting. Computed tomography and magnetic resonance imaging suggested the possibility of a GCT in the pineal region. The value of the serum tumor marker alpha-fetoprotein (AFP) was 5,396.1 μg/L, and β-human chorionic gonadotropin levels were within the normal range. Subsequently, the tumor was removed, and the final pathological result was a mixed GCT. Therefore, chemotherapy and radiation were added. However, the authors found a testicular tumor on ultrasound at the same time, and pathology after surgery suggested a mature cystic teratoma. Following treatment, the patient recovered well, and AFP levels dropped to normal values.LESSONSTo the authors’ knowledge, this report is the fourth case of simultaneous intracranial and testicular GCTs and the first case of a simultaneous mixed GCT in the pineal region and mature teratoma of the testis. A combination of surgery, chemotherapy, and radiation therapy for mixed GCTs in the pineal region and surgical excision for testicular reproductive cell tumors are effective in these patients, but long-term monitoring is required.

scholarly journals NI-11 Clinical significance of intracystic diffusion hyperintensity lesions remaining after treatment of intracranial germ cell tumor

2020 ◽  
Vol 2 (Supplement_3) ◽  
pp. ii14-ii14
Author(s):  
Motoki Takano ◽  
Takeshi Takayasu ◽  
Ushio Yonezawa ◽  
Akira Taguchi ◽  
Kazuhiko Sugiyama ◽  
...  
Keyword(s):  
Germ Cell ◽  
Clinical Significance ◽  
Cyst Wall ◽  
High Intensity ◽  
Mature Teratoma ◽  
Germ Cell Tumors ◽  
Residual Tumor ◽  
Cystic Tumor ◽  
Intracranial Germ Cell Tumor ◽  
Intensity Lesion

Abstract Background and purpose: About 30% of intracranial germ cell tumors are mixed germ cell tumors and teratomas are often found as those components. Intense chemoradiotherapy is performed according to the malignancy of the histopathology, but high-intensity lesion inside the cystic tumor on diffusion weighted imaging (DWI) sometimes remains after completion of the chemoradiotherapy. In this study, we examined the clinical significance of the DWI high-intensity lesion remaining in the cyst. METHODS: Five patients after initial chemoradiotherapy were resected residual tumor by craniotomy at our hospital from 2009 to 2019. Preoperative gadolinium-enhanced MRI defined the non-contrast-enhanced part of the tumor as intracystic, and DWI intensity was classified by its look as low-intensity, equal-intensity, and high-intensity compared to the cortex of the same slice. DWI signals in the solid area, cyst wall, and cyst were evaluated. Results: All cases were mature teratoma in histopathology, and no other tumor components were observed. On DWI, the cyst wall and solid part were visualized with low signal. High-intensity lesions and equal-intensity lesions in the cyst cavity were found in 3 and 1 cases, respectively. In these cases, pathological findings revealed a keratin-like substance in the cyst. Discussion: The intracystic high and equal intensity lesions on DWI removed after completion of chemoradiotherapy are considered to reflect the keratin-like component of mature teratoma. If DWI- high intensity and equal intensity lesions remain in the cyst of the tumor after the completion of chemoradiotherapy, tumor shrinkage cannot be expected even if the chemotherapy is strengthened. In such cases, we should consider to removing them by surgery. Conclusion: When DWI high and equal intensity lesions are found in the cysts of tumors remaining after chemoradiotherapy for intracranial germ tumors, it is possible that mature teratoma remains.

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 Ovarian teratomas: clinicopathological study at tertiary care center

2019 ◽  
Vol 8 (8) ◽  
pp. 3318
Author(s):  
Sunil Vitthalrao Jagtap ◽  
Nitin S. Kshirsagar ◽  
Shubham S. Jagtap ◽  
Saswati Boral ◽  
Nitesh Nasre
Keyword(s):  
Germ Cell ◽  
Histopathological Examination ◽  
Mature Teratoma ◽  
Tertiary Care ◽  
Germ Cell Tumors ◽  
Cystic Teratoma ◽  
Ovarian Teratoma ◽  
Care Hospital ◽  
Palpable Mass ◽  
Ovarian Teratomas

Background: Teratomas are belonging to a group of germ cell tumors. It is also referred to as dermoid cyst. Teratomas are most common germ cell tumor of the ovary. Teratomas are composed of various histological types. In this article we are presenting various morphological patterns, its clinical manifestation and its clinical significance.Methods: This is prospective study for a period of 3 years from March 2016 to February 2019 at tertiary care hospital. It consists of total evaluation of 82 cases of ovarian lesions which were surgically excised for clinically or radiologically suspected of ovarian neoplasm.Results: A total of 82 cases of ovarian specimen were included out of which 18 cases were of ovarian teratoma. In these 17 cases were benign teratomas, 1 case of immature teratoma. All the cases of mature teratoma were predominantly of cystic type with focal solid areas. Right sided ovary was involved in44.5% cases while left sided in 55.5% cases. The tumor size ranges from 2.5 cm to 20.8 cms. The age range in this study was from 20 to 60 year. The common age observed for ovarian teratoma was in group of 31-40 years, having 6 cases. The clinically most of cases were asymptomatic or presented with unexplained abdominal pain or palpable mass. USG finding in most of cases were diffuse or partial echogenic mass lesion with cystic nature and echogenic bands.Conclusions: In our study showed mature cystic teratoma is the most common type of ovarian teratomas. The immature and monodermal types are rare. The histopathological examination plays important role in final diagnosis   and patient management.

Second-Look Surgery for Intracranial Germ Cell Tumors

Neurosurgery ◽  
2015 ◽  
Vol 76 (6) ◽  
pp. 658-662 ◽  
Author(s):  
Hideki Ogiwara ◽  
Chikako Kiyotani ◽  
Keita Terashima ◽  
Nobuhito Morota
Keyword(s):  
Germ Cell ◽  
Tumor Markers ◽  
Mature Teratoma ◽  
Germ Cell Tumors ◽  
Residual Tumor ◽  
Complete Response ◽  
Mixed Germ Cell Tumor ◽  
Second Look ◽  
Intracranial Germ Cell Tumors ◽  
Atypical Cells

Abstract BACKGROUND: The role of second-look surgery in intracranial germ cell tumors (GCTs) needs to be reviewed. OBJECTIVE: To present our experience of second-look surgery in patients with intracranial GCTs who showed less than complete response despite normalizing or decreasing tumor markers after chemotherapy. METHODS: Retrospective review of 7 patients who underwent second-look surgery for an intracranial GCT was performed. RESULTS: Of 23 consecutive patients with newly diagnosed intracranial GCTs treated between August 2003 and August 2013, 7 patients (30%) underwent second-look surgery. The mean age was 9.4 years. The initial diagnoses were mixed germ cell tumor in 5 and immature teratoma in 2. Second-look surgery was performed after 1 to 3 courses of chemotherapy. Magnetic resonance imaging at the surgery demonstrated increasing residual tumor in 4 and stable residual tumor in 3. Tumor markers were normalized in 5 and nearly normalized in 2. Gross total resection was achieved in all patients. Histopathology at second-look surgery revealed mature teratoma in 5, fibrosis with atypical cells in 1, and fibrosis in 1. All patients subsequently underwent additional chemoradiation therapy according to the initial diagnosis. All patients are alive with no evidence of recurrence, with a mean follow-up of 48 months. CONCLUSION: Second-look surgery plays an important role in the treatment of intracranial GCTs. Surgery may be encouraged at a relatively early phase after chemotherapy when the residual tumor increases or does not change size despite normalized or nearly normalized tumor markers in order to achieve complete resection and improve outcome.

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 Treatment outcomes in malignant ovarian germ cell tumors

2017 ◽  
Vol 6 (12) ◽  
pp. 5256
Author(s):  
Ram Kumar B.
Keyword(s):  
Germ Cell ◽  
Chemotherapy Regimen ◽  
Primordial Germ Cells ◽  
Germ Cell Tumour ◽  
Germ Cell Tumors ◽  
Cystic Teratoma ◽  
Germ Cell Tumours ◽  
Fertility Sparing Surgery ◽  
Fertility Sparing ◽  
Yolk Sac Tumour

Background: Malignant ovarian germ cell tumours are rare group of ovarian neoplasms derived from primordial germ cells of the ovary. Objective of present study was to evaluate the outcome of treatment in malignant germ cell tumours.Methods: 21 Patients of malignant ovarian germ cell tumours registered at Department of Medical Oncology, Institute of Obstetrics and Gynaecology, Chennai for the period from January 2012 to December 2015 were retrospectively analyzed for treatment outcomes.Results: The median age at presentation was 21 years with age range between 14 and 40 years. 9patients (43%) presented with mixed germ cell tumour, 6 patients (29%) with dysgerminoma, 3 patients (14%) with yolk sac tumour and 3 patients (14%)with mature cystic teratoma. 13 patients (62%) presented with Stage I disease, 5 patients (24%) with Stage III and 3 patients (14%) with Stage II. Fertility sparing surgery was done in 15 patients (71%), and 4 patients (19%) who completed family had TAH with BSO done. Adjuvant Chemotherapy was given for 16 patients (76%) and as Neoadjuvant in 2patients (10%) who had biopsy alone performed. 4patients (19%) developed recurrence and was taken for salvage PVI chemotherapy.Conclusions: Malignant ovarian germ cell tumours are relatively uncommon neoplasms characterized by high chemo sensitivity. This study confirms that malignant ovarian germ cell tumours have excellent prognosis and the effectiveness of BEP chemotherapy regimen. Fertility sparing surgery is feasible in most cases. Advanced Stage configured as an important risk factor for survival. The chemotherapy regimen was associated with significant but manageable toxicity.

scholarly journals GCT-70. INTRACRANIAL GROWING TERATOMA SYNDROME IN CHILDREN

2020 ◽  
Vol 22 (Supplement_3) ◽  
pp. iii342-iii342
Author(s):  
Maria Carter Febres ◽  
Carol S Bruggers ◽  
Holly Zhou ◽  
Arie Perry ◽  
John Kestle ◽  
...  
Keyword(s):  
Germ Cell ◽  
Obstructive Hydrocephalus ◽  
Mature Teratoma ◽  
Germ Cell Tumors ◽  
Residual Tumor ◽  
Complete Resection ◽  
Pineal Tumor ◽  
Tumor Biopsy ◽  
Growing Teratoma Syndrome ◽  
Multiagent Chemotherapy

Abstract Germ cell tumors account for less than 5% of all intracranial malignancies in children. Intracranial growing teratoma syndrome (GTS) is a rare pathophysiologic process characterized by growth of mature teratoma elements of a non-germinomatous germ cell tumor (NGGCT) during or following treatment with chemotherapy, in addition to normalization of or declining AFP/βHCG of the cerebral spinal fluid (CSF)/serum. A 13-year-old male presented with headache, emesis, and diplopia. MRI of the brain/spine revealed a localized 3.1 x 3.1 x 3.2 cm pineal tumor. Biopsy confirmed NGGCT (germinoma, immature and mature teratoma). Serum AFP (227ng/ul) and βHCG (12 IU/L) and CSF AFP (21ng/ul) and βHCG (31 IU/L) were elevated. Prior to cycle two of chemotherapy, he developed unstable gait and moderate hearing loss. Repeat MRI brain demonstrated tumor enlargement (4.4 x 5.2 x 5.1 cm) and obstructive hydrocephalus, although serum AFP/βHCG had normalized. Gross total resection of tumor confirmed GTS, without residual immature/malignant elements. Following six cycles of multiagent chemotherapy (carboplatin, etoposide, ifosfamide) and proton beam craniospinal irradiation (36 Gy with 18 Gy boost), he remains free of disease at eleven months since diagnosis. The pathogenesis of GTS remains unclear. Care must be taken to avoid misdiagnosing GTS as progressive NGGCT, as treatment and prognosis differ significantly. Second-look surgery, with a goal of complete resection, should be considered in cases of NGGCT when residual tumor grows during or following therapy, as this may represent GTS. Although histologically benign, GTS can be fatal. In patients with GTS, complete resection is usually curative.

Management of Stage II Germ Cell Tumors: Be Sure, Be Patient, Be Safe

2019 ◽  
Vol 37 (22) ◽  
pp. 1856-1862 ◽  
Author(s):  
Christian K. Kollmannsberger ◽  
Lucia Nappi ◽  
Craig Nichols
Keyword(s):  
Germ Cell ◽  
Ct Scan ◽  
Mature Teratoma ◽  
Relevant Literature ◽  
Germ Cell Tumors ◽  
Distant Metastases ◽  
Management Options ◽  
Mixed Germ Cell Tumor ◽  
Left Testicle ◽  
Management Approaches

The Oncology Grand Rounds series is designed to place original reports published in the Journal into clinical context. A case presentation is followed by a description of diagnostic and management challenges, a review of the relevant literature, and a summary of the authors’ suggested management approaches. The goal of this series is to help readers better understand how to apply the results of key studies, including those published in Journal of Clinical Oncology, to patients seen in their own clinical practice. A healthy 27-year-old man discovered a left testicular mass. Several months later he saw an urologist, who palpated a suspicious mass on the left testicle; an ultrasound confirmed a 2-cm solid mass. Serum tumor marker testing disclosed a slightly elevated alpha-fetoprotein (AFP) of 12.3 µg/L (upper limit of normal, 8.0 µg/L), and a normal β-human chorionic gonadotropin (HCG). Staging imaging with a contrast-enhanced computed tomography (CT) scan of the chest/abdomen/pelvis showed no evidence for retroperitoneal lymphadenopathy or distant metastases. He underwent a left radical orchiectomy, and pathology showed a 1.5-cm mixed germ cell tumor with 85% embryonal, 10% yolk sac tumor, and 5% mature teratoma histologies. Lymphovascular invasion was present. His AFP normalized after surgery. After discussion of management alternatives, he chose active surveillance, but 4 months later a scheduled surveillance CT scan identified a 1.4-cm left para-aortic lymph node just below the left renal hilum ( Fig 1 ). Serum tumor markers remained negative. He returns to discuss his results and potential management options.

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