نتایج جستجو برای: embryonal carcinoma
تعداد نتایج: 396754 فیلتر نتایج به سال:
We present a case of 16-year-old male, who was referred from private centre for dyspnoea, fatigue, and orthopnea. The chest radiograph revealed complete opacification of left chest which was confirmed by computed tomography as a large left mediastinal mass measuring 14 × 15 × 18 cm. The diagnostic needle core biopsy revealed mixed germ cell tumour with possible combination of embryonal carcinom...
In this study, we present statistical analyses of pineal tumors based on the data from Brain Tumor Registry of Japan. The most frequent tumor in the pineal region was germinoma, and it accounted for 49.2% of all pineal tumors; it was followed by pineocytoma (8.5%), glioma (6.5%), pineoblastoma (5.1%), malignant teratoma (5.2%) and teratoma (5.1%). Germinoma is most frequent among patients betwe...
Primordial germ cells (PGCs), the embryonic precursors of the gametes of the adult animal, can give rise to two types of pluripotent stem cells. In vivo, PGCs can give rise to embryonal carcinoma cells, the pluripotent stem cells of testicular tumors. Cultured PGCs exposed to a specific cocktail of growth factors give rise to embryonic germ cells, pluripotent stem cells that can contribute to a...
The messenger RNA species that code for two extra-embryonic endodermal cytoskeletal proteins (Endo A and Endo B) have been identified. Endo A and Endo B messenger RNA species are differentially expressed. They are absent, or at basal levels, in undifferentiated embryonal carcinoma cells (F9.22 cell line) and relatively abundant in parietal endoderm (PFHR9 cell line) or in embryonal carcinoma ce...
The pluripotent potential of embryonic stem cells has often seen them touted as the future of regenerative medicine. The road to any therapeutic success however, must stretch back to teratocarcinoma, the tumour from which pluripotent stem cells (embryonal carcinoma cells) were first derived. This 2011 meeting in Cardiff acted as a historical perspective from which the impact of embryonal carcin...
BACKGROUND Hepatic embryonal sarcoma (HES) is a rare but aggressive primary tumor of the liver occurring most frequently in childhood. CASE PRESENTATION We report a case of a 52 year old woman having previously undergone treatment for ovarian serous papillary carcinoma who subsequently presented with a large solitary mass in the liver. Initially this was presumed to be metastasis from the ova...
Treatment with colchicine or x-radiation of a human embryonal carcinoma of testicular origin, which has secreted a chorionic gonadotropin-like hormone in ~0 per cent of heterografted hosts, resulted in a 2 89 times increase in the incidence of chorionic gonadotropin-secreting tumors as determined in oophorectomized and hypophysectomized animals. Lines developed from three of the tumors treated ...
Human germ cell tumors (GCTs) may have variable histology and clinical behavior, depending on factors such as sex of the patient, age at clinical diagnosis, and anatomical site of the tumor. Some types of GCT, i.e., the seminomas/germinomas/dysgerminomas and embryonal carcinomas (the stem cell component of nonseminomas), have pluripotent potential, which is demonstrated by their capacity to dif...
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