نتایج جستجو برای: ectopic thymus
تعداد نتایج: 43230 فیلتر نتایج به سال:
SMALL lobules of aberrant thymus are not infrequently found in the neck, often within the thyroid gland, possibly present in up to 20% of humans (Goldstein and Mackay, 1969; Gilmour, 1941). However, ectopic thymic tissue of size sufficient to produce a palpable swelling of the neck is uncommon. In a review of the forty-six such cases recorded in the English literature, Hinds et al. (1970) found...
Introduction. Primary hyperparathyroidism is rare pathology in children (2?5:100,000). In more than 85% of patients, a single adenoma present, and its extirpation usually the only treatment patient requires. approximately 15?80% cases, ectopic mediastinal parathyroid tissue can be found inside thymus. Case outline. Our was 13-year-old boy, who presented with multiple bone fractures previous per...
The Aire transcription factor plays an important role in immunological self-tolerance by mediating the ectopic expression of peripheral self-antigens by thymic medullary epithelial cells (MECs), and the deletion of thymocytes that recognize them. In Aire-deficient humans or mice, central tolerance is incomplete and multiorgan autoimmune disease results. We examined the variability of Aire's eff...
A thymectomy can ameliorate the symptoms of myasthenia gravis (MG) and prevent the progression of ocular MG (OMG) to generalized MG (GMG). However, postoperative myasthenic crisis (POMC) is a serious post-thymectomy complication. Preoperative anxiety (POA) is common but typically neglected in MG patients. The association of POA with POMC has not yet been examined.From June 2007 to December 2013...
PDGFRalpha-expressing mesenchyme regulates thymus growth and the availability of intrathymic niches.
The thymus provides a specialized site for the production of T cells capable of recognizing foreign antigens in the context of self-major histocompatibility complex (MHC) molecules. During development, the thymus arises from an epithelial rudiment containing bipotent progenitors that differentiate into distinct cortical and medullary epithelial cells to regulate the maturation and selection of ...
Although there has been increased knowledge about the molecular biology of neuroendocrine tumors (NETs), little is known about thymic carcinoids and even less about those with excessive hormone disorders, such as ectopic ACTH syndrome. This study was designed to gain insights into the molecular networks underlying the tumorigenesis of thymic carcinoids with ACTH secretion. By an approach integr...
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