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Mouse Yolk Sac Hematopoiesis [PDF]
Frontiers in Cell and Developmental Biology, 2018 The yolk sac is the first observed site of hematopoiesis during mouse ontogeny. Primitive erythroid cells are the most well-recognized cell lineages produced from this tissue. In addition to primitive erythroid cells, several types of hematopoietic cells
Toshiyuki Yamane
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Yolk sac tumor of the liver in an infant: A case report [PDF]
Radiology Case ReportsYolk sac tumors can occur in various extragonadal sites, including the hepatobiliary tract, and are often associated with elevated serum alpha-fetoprotein.
Sara Ez-zaky, MD +7 more
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Differential regulation of fetal bone marrow and liver hematopoiesis by yolk-sac-derived myeloid cells [PDF]
Nature CommunicationsFetal hematopoiesis takes place in the liver before colonizing the bone marrow where it will persist for life. This colonization is thought to be mediated by specification of a microenvironment that selectively recruits hematopoietic cells to the nascent
Benjamin Weinhaus +12 more
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Yolk sac sign: sonographic appearance of the fetal yolk sac in missed abortion. [PDF]
Journal of Ultrasound in Medicine, 1986 With improving technology, the fetal yolk sac can be routinely visualized sonographically in all living gestations of six to ten weeks. The minimal growth of the yolk sac during this interval and its subsequent obscuration by the growing amniotic sac are verified in this study.
Shepard R. Hurwitz
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Nomogram for predicting testicular yolk sac tumor in children based on age, alpha-fetoprotein, and ultrasonography [PDF]
Frontiers in PediatricsObjectiveTo establish a predictive model for distinguishing testicular benign or yolk sac tumors in children.MethodsWe retrospectively analyzed data for 119 consecutive patients with unilateral testicular tumors treated at a single institution from June ...
Huan Yu +13 more
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Ovarian Yolk Sac Tumors: Is Fertility Preservation Possible? [PDF]
Advanced Biomedical ResearchYolk sac tumors make up 14% to 20% of all malignant ovarian germ cell tumors. Serum alpha-fetoprotein (AFP) levels are elevated in a significant number of patients and are useful for monitoring the response to treatment and for post-treatment ...
Fariba Behnamfar +2 more
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Teratomas and yolk-sac tumours. [PDF]
Journal of Clinical Pathology, 1976 Nicola J. Brown
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Primary Gastric Yolk Sac Tumour
Sultan Qaboos University Medical Journal, 2018 Primary gastric yolk tumours are extremely rare. We report a 52-year-old male who presented to the Sultan Qaboos University Hospital, Muscat, Oman, in 2017 after having undergone a gastrectomy abroad due to a suspected poorly-differentiated ...
Asim Qureshi +4 more
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Asian Journal of Medical Sciences, 2022 Background: The yolk sac is a small, membranous structure, which is situated outside the embryo and has a variety of functions during embryonic development.
Geetanjali Srivastava +5 more
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Visceral endoderm expression of Yin-Yang1 (YY1) is required for VEGFA maintenance and yolk sac development. [PDF]
PLoS ONE, 2013 Mouse embryos lacking the polycomb group gene member Yin-Yang1 (YY1) die during the peri-implantation stage. To assess the post-gastrulation role of YY1, a conditional knock-out (cKO) strategy was used to delete YY1 from the visceral endoderm of the yolk
Siyeon Rhee +5 more
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