منابع مشابه
Primary Extragonadal Retroperitoneal Pure Yolk Sac Tumor
Primary germ cell tumors of extragonadal origin are rare and exact incidence of this type cancer is unknown. They have been estimated to represent 3-5% of all adult germ cell malignancies (1). The origin of primary extragonadal germ cell tumors (EGGCT) is still a matter of debate. According to widely accepted theory, during embryogenesis, germ cells are misplaced anywhere at the midline. The me...
متن کاملYolk Sac Cultivation of Tumors
Some months ago there was published from this laboratory a brief preliminary report of a method whereby tumors could be cultivated in the yolk sacs of developing chick embryos (4). Neoplasms were first injected into the yolk sac with the idea that the tumor cells would die and disintegrate, thus releasing any virus that might be present. It was hoped that if such a release occurred the medium p...
متن کاملEndodermal origin of yolk-sac-derived teratomas.
Mutant mice deficient in glucose-6-phosphate dehydrogenase were used to induce teratomas. This enzyme is linked to the X chromosome, which can be inactivated in female embryo. The differences in the enzyme activity between yolk sac mesoderm and embryo versus yolk sac endoderm can be detected in female concepti by using appropriate crosses of wild-type and G6PD-deficient mice. Histochemical stud...
متن کاملSuccessful treatment of advanced stage yolk sac tumour of extragonadal origin: a case report and review of literature
BACKGROUND Yolk sac tumour diagnosis should be considered for young age patients admitted to the hospital with non-specific complaints of widespread disease. Correct diagnosis and carefully planned treatment is the key to a successful outcome. METHODS AND MATERIALS We present a rare case of a widespread yolk sack tumour of a uterine broad ligament. Our team directed a special attention toward...
متن کاملYOLK SAC TUMOR OF VAGINA
Malignant germ-cell tumors (MGCT) are rare tumors of childhood accounting for less than 3% of pediatric malignancies. Endodermal sinus tumor (EST) forms the most common histologic subtype of MGCT. The vagina is an extremely rare site for GCTs. An 8-month-old female was admitted with a short history of vaginal bleeding, and a mass protruding from the vagina. She was pale and a mass was palpab...
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ژورنال
عنوان ژورنال: Cancer
سال: 1970
ISSN: 0008-543X,1097-0142
DOI: 10.1002/1097-0142(197006)25:6<1368::aid-cncr2820250615>3.0.co;2-p