The Differential Diagnosis of Yolk Sac Tumor and Seminoma: Usefulness of Cytokeratin, Alpha-Fetoprotein, and Alpha-1-Antitrypsin Immunoperoxidase Reactions

1987 ◽  
Vol 88 (3) ◽  
pp. 328-332 ◽  
Author(s):  
Douglas E. Eglen ◽  
Thomas M. Ulbright
Keyword(s):  
Differential Diagnosis ◽  
Yolk Sac ◽  
Alpha Fetoprotein ◽  
Yolk Sac Tumor ◽  
Alpha 1 Antitrypsin

scholarly journals Somatically derived Yolk Sac tumor of the urinary bladder: A case report and differential diagnosis

2020 ◽  
Author(s):  
Nadia Espejo-Herrera ◽  
Enric Condom Mundó
Keyword(s):  
Differential Diagnosis ◽  
Case Report ◽  
Urinary Bladder ◽  
Urothelial Carcinoma ◽  
Final Diagnosis ◽  
Yolk Sac ◽  
Yolk Sac Tumor ◽  
High Grade ◽  
Yolk Sac Tumors ◽  
Urinary Bladder Tumor

Abstract Background: Yolk sac tumor is a germ cell neoplasm that arises predominantly in the gonads, but can also derive from somatic neoplasms in extragonadal locations. These cases have been denominated recently as “somatically derived Yolk sac tumors”, and have been documented in several locations, although reports from the urinary tract are scarce. To our knowledge, this is the first report of a Yolk sac tumor derived from urothelial carcinoma. Case presentation: We present a unique case of a 76-year-old man with a recurrent urinary bladder tumor, initially interpreted as a high grade urothelial carcinoma with glandular differentiation. In the recurrent tumor, diverse histological patterns were identified, including glandular, hepatoid and sarcomatoid. This tumor showed positivity for AFP, GLP3 and SALL4, and negativity for CK7 and EMA. Fluorescent in situ hybridization study showed a polysomic pattern of chromosome 12. All these findings led to the final diagnosis of a Yolk sac tumor derived from urothelial carcinoma. Conclusions: Somatically derived Yolk Sac tumors should be considered in the differential diagnosis of a high grade urothelial carcinoma, particularly when glandular and other unusual patterns are observed. Key words: Yolk sac tumor, somatically derived, urothelial carcinoma, urinary bladder, case report.

scholarly journals Yolk Sac tumor differentiation in urothelial carcinoma of the urinary bladder: A case report and differential diagnosis

2020 ◽  
Author(s):  
Nadia Espejo-Herrera ◽  
Enric Condom Mundó
Keyword(s):  
Differential Diagnosis ◽  
Urinary Bladder ◽  
Urothelial Carcinoma ◽  
Final Diagnosis ◽  
Yolk Sac ◽  
Yolk Sac Tumor ◽  
High Grade ◽  
Predominant Component ◽  
Bladder Urothelial Carcinoma ◽  
Urinary Bladder Tumor

Abstract Background: Yolk sac tumor (YST) is a germ cell neoplasm that arises predominantly in the gonads, but can also derive from somatic neoplasms in extragonadal locations. These latter cases have been documented in several organs, although reports from the urinary tract are limited. To our knowledge, this is the first report of a bladder urothelial carcinoma with a predominant component of YST differentiation.Case presentation: We present a unique case of a 76-year-old man with a recurrent urinary bladder tumor, initially interpreted as a high grade urothelial carcinoma with glandular differentiation. In the recurrent tumor, diverse histological patterns were identified, including glandular, hepatoid and sarcomatoid. This tumor showed positivity for AFP, GLP3 and SALL4, and negativity for CK7 and EMA. Fluorescent in situ hybridization study showed a polysomic pattern of chromosome 12. All these findings led to the final diagnosis of a YST derived from urothelial carcinoma. Conclusions: YST differentiation should be considered in the differential diagnosis of a high grade urothelial carcinoma, particularly when glandular and other unusual patterns are observed.

scholarly journals CT imaging of ovarian yolk sac tumor with emphasis on differential diagnosis

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
Yang-Kang Li ◽  
Yu Zheng ◽  
Jian-Bang Lin ◽  
Gui-Xiao Xu ◽  
Ai-Qun Cai ◽  
...  
Keyword(s):  
Differential Diagnosis ◽  
Ct Imaging ◽  
Yolk Sac ◽  
Yolk Sac Tumor

scholarly journals A Case Report of Yolk Sac Tumor in Cerebellar Hemisphere and Review of Literature

2020 ◽  
Author(s):  
Yuting Zhang ◽  
Lusheng Li ◽  
Ling He
Keyword(s):  
Case Report ◽  
Histopathological Examination ◽  
Case Reports ◽  
Yolk Sac ◽  
Alpha Fetoprotein ◽  
Yolk Sac Tumor ◽  
Cerebellar Hemisphere ◽  
Review Of Literature ◽  
Intracranial Germ Cell Tumor ◽  
The Right

Abstract Background: Yolk sac tumor also known as endodermal sinus tumor, is a rare intracranial germ cell tumor. We reported a case of yolk sac tumor in cerebellar hemisphere, and reviewed associated literatures. The majority of tumor locations are near the midline. On review of literature, very few case reports of intracranial yolk sac tumor have been published, and there is only one case report has described a yolk sac tumor arising from the cerebellum. Case presentation: A two years old boy admitted to our hospital due to headache and unsteady gait for six days. CT and MRI demonstrated a tumor in the right cerebellar hemisphere, and the blood and cerebrospinal fluid alpha-fetoprotein were found increased. It was diagnosed as yolk sac tumor after operation comfirmed by histopathological examination. Postoperative chemotherapy was performed, and the patient suffered no tumor recurrence one year and a half after the surgery. Conclusions: The clinical characteristics and imaging diagnosis of intracranial yolk sac tumor are lack of specificity, the comfirmed diagnosis is depending on the combination of elevated alpha-fetoprotein and histopathological examination.

scholarly journals Combined hepatoblastoma and yolk sac tumor of the liver

2020 ◽  
Vol 19 (1) ◽  
pp. 92-99
Author(s):  
M. M. Morozova ◽  
A. V. Varlamov ◽  
O. V. Dolzhansky ◽  
A. V. Filin ◽  
D. S. Burmistrov ◽  
...  
Keyword(s):  
Morphological Structure ◽  
Personal Data ◽  
Yolk Sac ◽  
Alpha Fetoprotein ◽  
Yolk Sac Tumor ◽  
Histological Structure ◽  
Beta Catenin ◽  
Right Lobe ◽  
Mitotic Figures ◽  
The Right

A 6-year-old patient was admitted to the Petrovsky National Research Center of Surgery in Moscow, diagnosed with hepatoblastoma (HB) of the right lobe of the liver and after undergoing 4 cycles of SIOPEL (super PLADO) pre-operative chemotherapy. An immunohistochemistry test, performed after liver resection, revealed a rare combination of mixed epithelial and mesenchymal hepatoblastoma and yolk sac tumor. The epithelial component of HB consisted of highly differentiated fetal cells, while the mesenchymal component consisted of osteoid. The morphological structure of the second lesion corresponded to yolk sac tumor. Both tumors had regressive changes conditioned by chemotherapy: these changes were most pronounced in HB. In the highly differentiated fetal component of HB it was possible to detect a weak focal perinuclear alpha-fetoprotein expression, HepPar expression, membranous expression of beta-catenin and diffuse glutamine synthetase expression. Mitotic figures were not determined. The node of the yolk sac tumor had the characteristic histological structure of an endodermal sinus tumor with a hepatoid component. In the main tumor node and its nodular elements in the fibrovascular stroma it was possible to identify alpha-fetoprotein expression, CD34, nuclear and cytoplasmic expression of beta-catenin, CDX2, as well as a rare expression of PLAP and multi-cytokeratin, and mitotic activity was high (21 in 10 high power fields, 400x magnification). In the existing literature available to us, there is only one observation of combined hepatoblastoma and yolk sac tumor. Parents patients agreed to use personal data, including the fotos, in research and publications.

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