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Pelvic yolk sac tumor

The Spine Journal, 2016
A1-year-old infant presented to our hospital with a pelvic mass. There was no history of surgery, and the clinical examination revealed a pelvic palpable lesion. Magnetic resonance imaging showed a pelvic mass that was heterogeneous on T1-weighted and T2-weighted images, and it was heterogeneously enhanced after contrast administration (Fig.
POLAT, Gökhan   +4 more
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Ovarian yolk sac tumor

International Journal of Gynecological Cancer, 2021
Ovarian germ cell tumors derive from ovarian germ cells and account for approximately 20% of all ovarian neoplasms. Only 1–2% of ovarian germ cell tumors are called malignant ovarian germ cell tumors and constitute approximately 3–5% of all malignant ovarian neoplasms.[1][1] Yolk sac ...
Teresa Iscar   +3 more
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Histogenesis of the yolk sac in the chick

Canadian Journal of Zoology, 1973
The histogenesis of the chick yolk sac was studied from incubation day 3 to posthatching day 8. During incubation the epithelial lining forms complex folds which penetrate into the yolk mass. Hemopoiesis is at a maximum between incubation days 11 and 13.
B H, Juurlink, M A, Gibson
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Ultrasonographic measurement of the yolk sac

BJOG: An International Journal of Obstetrics & Gynaecology, 1982
Summary. Ultrasonographic measurements of the yolk sac were made during first trimester in 100 pregnancies. The results were related to the crown‐rump length of the embryos and showed an increase in size from 7 to 11 weeks menstrual age. A possible relation between anomalies in yolk sac development and embryonic development was studied in six patients
M J, Crooij   +3 more
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Yolk Sac Tumor of the Bladder

Journal of Urology, 1983
A 1-year-old white boy presented with hematuria and was found to have a large polypoid bladder mass. Light and electron microscopic, and immunohistochemical diagnosis was a yolk sac (endodermal sinus) tumor. This is the first case of a primary yolk sac tumor of the bladder to be described in the English literature.
G, Taylor   +3 more
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Hemopoiesis in the human yolk sac

American Journal of Anatomy, 1989
AbstractThe endodermal layer of the human yolk sac was examined three‐dimensionally with light microscopy on serial sections using scanning electron microscopy and transmission electron microscopy to find the origin of hemo poiesis in the yolk sac. Cell‐labelling techniques were also employed using the monoclonal anti‐transferrin receptor antibody ...
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Archenteronoma (yolk sac tumors)

Journal of Pediatric Surgery, 1978
Ten cases of archenteronoma are reviewed with a follow-up between 2 mo and 7 yr. Their presentation was similar to that of rhabdomyosarcoma except for testicular tumors that may present as a hydrocele. A good prognosis was found with tumors amenable to primary resection and chemotherapy.
A E, Mackinnon, S J, Cohen
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Yolk Sac Tumor of the Mandible

Journal of Oral and Maxillofacial Surgery, 2008
Malignant germ cell tumors represent 3% of neoplasms in the pediatric population. Yolk sac tumors (endodermal sinus tumors) are the most common malignant germ cell tumors in this age group. In young children, the majority of these tumors affect extragonadal sites, principally the sacrococcygeal region.
Derek M, Steinbacher   +3 more
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Yolk sac tumour of the ear

Histopathology, 1995
We report the second known case of yolk sac tumour of the external auditory canal, occurring in an eight‐month‐old girl. The excised tumour demonstrated histopathological and immunohistochemical features identical to those of yolk sac tumours of gonadal origin. The tumour was aneuploid by flow cytometry.
M, Fukunaga   +4 more
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Cytodiagnosis of yolk sac tumor

The Indian Journal of Pediatrics, 2004
To analyze cytomorphologic features of yolk sac tumors of childhood. Four cases of pediatric yolk sac tumor (YST), diagnosed by fine needle aspiration cytology were reviewed (1998-2002). Age of patients ranged from 1(1/2) to 5 years. Three cases presented clinically with an intra-abdominal mass while one case presented with a testicular mass.
Nishat, Afroz, Nazoora, Khan, R S, Chana
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