Primary Intracranial Mixed Germ-Cell Tumors in Adult: MR Findings

2005 ◽  
Vol 18 (2) ◽  
pp. 231-234
Author(s):  
G.Q. Wei ◽  
Y. Huan ◽  
H.D. He ◽  
L.J. Sun ◽  
Y. Yang ◽  
...  
Keyword(s):  
Germ Cell ◽  
Germ Cell Tumor ◽  
Preoperative Diagnosis ◽  
Germ Cell Tumors ◽  
Cell Tumor ◽  
Mri Findings ◽  
Mixed Germ Cell Tumor ◽  
Imaging Characteristics ◽  
Suprasellar Region ◽  
Mixed Germ Cell Tumors

The incidence of primary intracranial mixed germ-cell tumor varies geographically. Preoperative diagnosis is of great importance in treatment planning. We describe the clinical and MRI findings of a case of mixed germ-cell tumors in the suprasellar region with emphasis on the imaging characteristics suggesting the histological diagnosis.

scholarly journals Mixed Germ Cell Tumor with Extensive Yolk Sac Tumor Elements in the Frontal Lobe of an Adult

2012 ◽  
Vol 2012 ◽  
pp. 1-5
Author(s):  
Toshihide Takahashi ◽  
Eiichi Ishikawa ◽  
Yosuke Masuda ◽  
Tetsuya Yamamoto ◽  
Taiki Sato ◽  
...  
Keyword(s):  
Germ Cell ◽  
Frontal Lobe ◽  
Germ Cell Tumor ◽  
Germ Cell Tumors ◽  
Yolk Sac ◽  
Cell Tumor ◽  
Yolk Sac Tumor ◽  
Mri Findings ◽  
Mixed Germ Cell Tumor ◽  
Subtotal Removal

Intracranial nongerminomatous germ cell tumors (NGGCTs) in unusual locations are extremely rare. Here, we report a case of a yolk sac tumor in the frontal lobe in a middle-aged patient. A 42-year-old man was admitted to our hospital for headache and nausea. Magnetic resonance imaging (MRI) showed an enhanced mass lesion with a marked cyst component. The serum alpha-fetoprotein (αFP) level was extremely high. Histological examination of specimens after subtotal removal revealed a primary mixed germ cell tumor with extensive yolk sac tumor elements, often referred to as an intracranial “yolk sac tumor.” The preoperative diagnosis of NGGCTs in unusual age and locations is extremely difficult. Clinicians should consider the possibility of NGGCTs, including yolk sac tumors, when intracranial tumors with unusual MRI findings are encountered.

scholarly journals MRI Findings of Suprasellar Germ Cell Tumors in Two Dogs

2018 ◽  
Vol 54 (3) ◽  
pp. 167-172 ◽  
Author(s):  
Laurie Cook ◽  
Michelle Tensley ◽  
Wm Tod Drost ◽  
Christopher Koivisto ◽  
Michael Oglesbee
Keyword(s):  
Germ Cell ◽  
Germ Cell Tumor ◽  
Germ Cell Tumors ◽  
Head Tilt ◽  
Tumor Location ◽  
Cell Tumor ◽  
Mri Findings ◽  
Suprasellar Region ◽  
Adjacent Structures ◽  
Mixed Pattern

ABSTRACT A 4 yr old border collie presenting for mydriasis and decreased mentation and a 7 yr old Boston terrier presenting for obtundation, head tilt, and paraparesis were both evaluated using MRI. Findings in both included mass lesions of the thalamus and brainstem that were hypo- to isointense on T1-weighted images and hyperintense on T2-weighted images with regions of hypointensity, and robust contrast enhancement and displacement of adjacent structures. Postmortem histopathology findings, tumor location, and a mixed pattern of epithelial cell differentiation were consistent with germ cell tumor in both cases. Germ cell tumor of the suprasellar region is an infrequently reported neoplasm of dogs and imaging findings in this species have not been well described in the prior literature.

scholarly journals Mixed Germ Cell Tumor in the Eye of a Dog

2001 ◽  
Vol 38 (6) ◽  
pp. 712-714 ◽  
Author(s):  
J. C. Patterson-Kane ◽  
F. Y. Schulman ◽  
N. Santiago ◽  
L. Mckinney ◽  
C. J. Davis
Keyword(s):  
Epithelial Cells ◽  
Germ Cell ◽  
Germ Cell Tumor ◽  
Germ Cell Tumors ◽  
Cell Tumor ◽  
Tumor Type ◽  
Mixed Germ Cell Tumor ◽  
Prominent Component ◽  
Suprasellar Region ◽  
The Right

A 3-year-old female neutered Staffordshire Bull Terrier presented with a mixed germ cell tumor involving the base of the iris and the ciliary body of the right eye. The tumor mass was composed primarily of packeted vacuolated, polygonal (hepatoid) cells and small round cells; epithelial cells lining tubuloacinar structures were a less prominent component. The hepatoid and round cells stained positively for alpha-fetoprotein and cytokeratin. The epithelial cells stained positively for cytokeratin only, and some contained cytoplasmic mucin droplets. The polygonal cells were interpreted as a hepatoid variant of yolk sac tumor, and the epithelial cells were considered a teratomatous component. Trabeculae of bone were observed within the mass and may have been metaplastic or a teratomatous element. Extragonadal germ cell tumors are rare in dogs and have previously been reported only in the suprasellar region. This is the first report of this tumor type in the eye of a nonhuman species.

scholarly journals A rare case of mixed germ cell tumor in a teenage girl: a case report

2017 ◽  
Vol 6 (6) ◽  
pp. 2663
Author(s):  
Faraz S. Vali ◽  
Amit Kyal ◽  
Parul I. Chaudhary ◽  
Sujatha Das ◽  
Aprateem Mukherjee ◽  
...  
Keyword(s):  
Germ Cell ◽  
Germ Cell Tumor ◽  
Embryonal Carcinoma ◽  
Germ Cell Tumors ◽  
Cell Tumor ◽  
Ca 125 ◽  
Gestational Choriocarcinoma ◽  
Mixed Germ Cell Tumor ◽  
Initial Surgery ◽  
Alpha Feto Protein

Germ cell tumors represent only 20% to 25% of all benign and malignant ovarian neoplasms. Mixed germ cell tumors are a rare variety of non–dysgerminomatous germ cell tumors. They contain two or more elements; the most frequent combination being a dysgerminoma and an EST (Endodermal Sinus Tumor). We present a case of malignant mixed germ cell tumor comprising of yolk sac tumor, embryonal carcinoma and choriocarcinoma. A 13-year-old girl presented with a huge 25 x 18 cm mass in abdomen with raised values of CA-125, hCG, AFP (alpha-feto protein) and LDH (lactate dehydrogenase). She underwent laparotomy followed by unilateral salpingoopherectomy and infracolic omentectomy. Histopathology report revealed malignant mixed germ cell tumor comprising predominantly of EST with elements of embryonal carcinoma and non-gestational choriocarcinoma. Following surgery, she was started on adjuvant chemotherapy (Bleomycin, Etoposide and Cisplatin regimen). Mixed germ cell tumor (YST/EST, non-gestational choriocarcinoma and embryonal carcinoma) is a very rare tumor. Careful initial surgery with adequate staging biopsies followed by combination chemotherapy can greatly improve the prognosis of these patients

scholarly journals Non Seminomatous Mixed Germ Cell Tumor of Testis with a Large Abdominal and Retroperitoneal Extension: A Case Report

2020 ◽  
Vol 22 (1-2) ◽  
pp. 88-92
Author(s):  
Rumita Kayastha ◽  
S Pradhan ◽  
R Acharya ◽  
M Aryal ◽  
A Shrestha ◽  
...  
Keyword(s):  
Germ Cell ◽  
Germ Cell Tumor ◽  
Germ Cell Tumors ◽  
Cell Tumor ◽  
Testicular Germ Cell ◽  
Mixed Germ Cell Tumor ◽  
Contrast Enhanced ◽  
Cell Components ◽  
The Right ◽  
Enhanced Computed Tomography

Primary testicular germ cell tumors (PGCT) can be classified as seminomatous and non-seminomatous germ-cell tumor (NSGCT) types. Mixed germ cell tumors (MGCT), a subtype of NSGCT, contain more than one germ cell components. Here, we present a rare case of a MGCT composed of yolk sack tumor and teratoma which had a continuous large abdominal and retroperitoneal extension. A 43 years old male presented with complaints of discomfort and swelling over the right inguinoscrotal region. Ultrasonography (USG) showed a large ill-defined heteroechoic mass in the right inguinoscrotal region with vascularity and without separate visualization of right testis. Subsequent contrast enhanced Computed Tomography (CT) showed large enhancing mass in the right scrotal sac which was continuous with large abdominopelvic and retroperitoneal mass through the right inguinal canal. Tru-Cut biopsy of the scrotal mass showed MGCT with yolk sac and teratoma component. Patient underwent 6 cycles of chemotherapy followed by Right Radical Inguinal Orchidectomy.

scholarly journals A 23-Year-Old Female with a Mixed Germ Cell Tumor of the Pituitary Infundibulum: The Challenge of Differentiating Neoplasm from Lymphocytic Infundibuloneurohypophysitis—A Case Report and Literature Review

2014 ◽  
Vol 2014 ◽  
pp. 1-7
Author(s):  
Sann Yu Mon ◽  
Hussain Mahmud ◽  
Munira Abbasi ◽  
Geoff Murdoch ◽  
Juan C. Fernandez-Miranda ◽  
...  
Keyword(s):  
Germ Cell ◽  
Germ Cell Tumor ◽  
Histopathological Examination ◽  
Cell Tumor ◽  
Mri Imaging ◽  
Mixed Germ Cell Tumor ◽  
First Case ◽  
Imaging Characteristics ◽  
Progression Of Disease ◽  
Broad Variety

The pathologic spectrum of diseases that infiltrate the pituitary infundibulum includes a broad variety of clinical entities. There are significant differences in the prevalence of these etiologies depending on the age of presentation. Lymphocytic infundibuloneurohypophysitis (LINH) predominates over other causes of infundibular disease in adults over age 21. Differentiating LINH from other causes of infundibular disease can be difficult because the various etiologies often have similar clinical presentations and radiologic imaging characteristics. We report the first case in an adult of a mixed germ cell tumor comprised of germinoma and embryonal cell carcinoma infiltrating the pituitary infundibulum. In our case, a 23-year-old female was initially misdiagnosed as having LINH. She presented with panhypopituitarism and diabetes insipidus, which is the most common initial presentation in both entities. The two diagnoses are difficult to distinguish based on MRI imaging, CSF findings, and histopathological examination. Our case demonstrates the need for close follow-up of patients with isolated lesions of the pituitary infundibulum and reinforces the need for biopsy of an infundibular lesion when progression of disease is demonstrated. In our case, biopsy with comprehensive immunohistochemical staining was the sole means of making a definitive diagnosis.

scholarly journals Rare presentation of a seminoma with mixed germ cell tumor in undescended inguinal testis

2019 ◽  
Vol 6 (2) ◽  
pp. 611
Author(s):  
Siddhartha Verma ◽  
Heeralal Jakhar
Keyword(s):  
Germ Cell ◽  
Germ Cell Tumor ◽  
Germ Cell Tumors ◽  
Testicular Tumor ◽  
Cell Tumor ◽  
Uneventful Recovery ◽  
Predisposing Factor ◽  
Rare Presentation ◽  
Testicular Germ Cell ◽  
Mixed Germ Cell Tumor

Cryptorchidism is the most common predisposing factor in the development of testicular germ cell tumors. Seminoma is the most common malignancy developing in a cryptorchid testis. A rare case of seminoma with mixed germ cell tumor in an undescended testis is reported here. A 35-year-old male patient presented with swelling in left inguinal region science 1.5year. This  was smooth, firm to hard in consistency, restricted mobility and his left scrotum was empty. Serological markers α-FP, β-HCG, LDH were raised.  Sonography and CT scan revealed a testicular tumor in undescended left inguinal testis. High inguinal orchidectomy was done. Patient had an uneventful recovery. The histopathology report of biopsy revealed a seminoma with mixed germ cell tumor. Early diagnosis and management of the undescended testicle are needed to preserve fertility and improve early detection of testicular malignancy. Therapy should begin between six months and two years of age and may consist of hormone or surgical treatment.

scholarly journals Nephroblastoma Arising from Primary Testicular Germ Cell Tumor: A Case Report and Literature Review

2016 ◽  
Vol 2016 ◽  
pp. 1-4 ◽  
Author(s):  
Houda Alatassi ◽  
Brittany E. O’Bryan ◽  
Jamie C. Messer ◽  
Zhenglong Wang
Keyword(s):  
Germ Cell ◽  
Germ Cell Tumor ◽  
Embryonal Carcinoma ◽  
Lung Metastases ◽  
English Literature ◽  
Germ Cell Tumors ◽  
Testicular Germ Cell Tumor ◽  
Cell Tumor ◽  
Testicular Germ Cell ◽  
Mixed Germ Cell Tumor

Adult extrarenal nephroblastoma is a very rare tumor. Nephroblastoma arising from primary testicular germ cell tumor is exceedingly rare. To our knowledge, only three cases have been reported in the English literature. We report a case of a 19-year-old man who presented with a large right testicle. Image studies showed a large retroperitoneal mass along with liver and lung metastases. Orchiectomy demonstrated a mixed germ cell tumor composed of yolk sac tumor, embryonal carcinoma, and mature and immature teratoma with a significant portion of nephroblastoma. The patient received chemotherapy and no recurrence was noted during six months of followup. WT-1 expression was also studied due to the lack of consistency of its expression in testicular nephroblastoma in the literature. We also present a discussion and review of the literature due to its rarity, which indicate an adverse prognosis for patients with nephroblastoma components receiving standard chemotherapeutical regimes for testicular germ cell tumors.

scholarly journals Mixed germ cell tumor composed of a tridermic testicular teratoma and seminoma in a rooster

2019 ◽  
Vol 31 (3) ◽  
pp. 395-398 ◽  
Author(s):  
Vincent J. Tavella ◽  
Jessica N. Walters ◽  
Lisa M. Crofton ◽  
Tanya LeRoith
Keyword(s):  
Germ Cell ◽  
Germ Cell Tumor ◽  
Primordial Germ Cell ◽  
Germ Cell Tumors ◽  
Large Mass ◽  
Cell Tumor ◽  
Seminiferous Tubules ◽  
Diagnostic Laboratory ◽  
Mixed Germ Cell Tumor ◽  
History Of

A 5-y-old backyard Araucana–Americana rooster was presented to the regional diagnostic laboratory with a history of progressive lethargy and respiratory signs. Autopsy revealed a single large mass of testicular origin in the coelomic cavity, causing compression of other organs. Histologically, the mass was 1 neoplasm with mixed components of 2 different germ cell tumors, namely a teratoma composed of elements of all 3 primordial germ cell lines (ectoderm, mesoderm, and endoderm), and a seminoma consisting of round or polygonal cells arranged in sheets supported by a scant fibrovascular stroma. Teratomas and seminomas are both considered to be uncommon neoplasms in poultry medicine. A testicular teratoma is composed of mature embryonic tissue derived from at least 2 of the 3 germinal layers. Seminomas and teratomas both arise from the germinal epithelium of seminiferous tubules and are classified as germ cell tumors. This neoplastic mass thus is a rare case of a mixed germ cell tumor.

scholarly journals Malignant ovarian germ cell tumors in children: A single centre experience

2016 ◽  
Author(s):  
Priyanka Soni ◽  
Shalini Mishra ◽  
Sandeep Jain ◽  
Gauri Kapoor
Keyword(s):  
Germ Cell ◽  
Germ Cell Tumor ◽  
Mature Teratoma ◽  
Germ Cell Tumors ◽  
Stage Iv ◽  
Contralateral Side ◽  
Cell Tumor ◽  
Excellent Outcome ◽  
Mixed Germ Cell Tumor ◽  
Single Centre Experience

Background: Germ-cell tumors (GCT) are the commonest ovarian neoplasm in the first two decades of life. Aim: To study the profile of ovarian GCT in children and their outcome. Methods: Retrospective study of all cases of malignant ovarian GCT in the pediatric age (up to 18 years) was done from January 2002 to December 2015. The medical records of all admitted cases during this period were reviewed and the data was analysed with respect to age at diagnosis, clinical presentation, tumor markers, surgical stage, tumor histology, therapy, clinical course, and outcome. Results: Girls with malignant ovarian GCT were seen at our institute during the study period. Out of these 25 underwent treatment. Mean age at presentation was 11.7 years (range: 3-18 years). Abdominal pain was the commonest presentation. Twelve (47.3%) had right sided disease, 11 (42%) had left sided disease and 2 had bilateral disease. Twelve cases (57.8%) were diagnosed as stage I disease, 5 (10.5%) as stage II, 7 (26.3%) as stage III and 1 (5.2%) as stage IV. Elevated AFP >1000 was found in 9 (47.3%), elevated B-HCG (>50) in 7 (42%) and elevated LDH (>1000) in 7 (36.8%) patients at presentation. Twenty (73.6%) patients underwent surgery prior to chemotherapy out of which 4 (21%) patients presented after undergoing surgery at other centre. Fourteen (57.8%) patients received 4 cycles of BEP based chemotherapy, 6 (21%) received 3 cycles, 2 (10.5%) received 2 cycles and 1 patient did not receive any chemotherapy as it was mature teratoma. The most common histology was dysgerminoma in 8 (42%) patients followed by mixed germ cell tumor in 4 (21%), teratoma in 3 (15.7%), embryonal carcinoma in 2 (10.5%) and yolk sac tumor and mature teratoma in 1 patient each. Four (21%) patients had relapse on contralateral side which was salvaged. 1 patient presented with relapse who underwent only surgery outside, 1 patient had ovarian torsion. Median follow up is 27months. The event free survival rate was 78.9%. Conclusion: This study confirms an excellent outcome for girls with ovarian germ cell tumor. Patients with advanced surgical stage relapsed frequently. The mainstay of treatment is fertility preserving surgery and cisplatin-based chemotherapy.

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