| TES | thymic epithelial supernatant; toxic epidemic syndrome; transcutaneous electrical stimulation; trans... |
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| THF | tetrahydrocortisone F; tetrahydrofolate; tetrahydrofolic [acid]; tetrahydrofuran; thymic humoral fac... |
| TRE | thymic reticuloendothelial; thyroid hormone response; true radiation emission |
| PRCA | Pure Red Cell Aplasia |
| ACC | accommodation; acetyl coenzyme A carboxylase; acinic cell carcinoma; acute care center; adenoid cyst... |
| thymic agenesis | The absence of the thymus, which may be associated with parathyroid agenesis in DiGeorge syndrome. (05 Mar 2000) |
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| thymic alymphoplasia | Hypoplasia with absence of Hassall's corpuscles and deficiency of lymphocytes in the thymus and usually in lymph nodes, spleen, and gastrointestinal tract; there is peripheral lymphopenia and often hypogammaglobulinaemia and absence of plasma cells; presents in early infancy with respiratory infections and leads to death within a few months. See: immunodeficiency with hypoparathyroidism. (05 Mar 2000) |
| thymic arteries | <anatomy, artery> Small twigs supplying anterior mediastinal structures: mainly thymus and lymph nodes. Synonym: rami mediastinales arteriae thoracicae internae, rami thymici, anterior mediastinal arteries, arteriae thymicae, thymic arteries. (05 Mar 2000) |
| thymic branches of internal thoracic artery | <anatomy, artery> See: mediastinal branches of internal thoracic artery. (05 Mar 2000) |
| thymic corpuscle | Small spherical bodies of keratinised and usually squamous epithelial cells arranged in a concentric pattern around clusters of degenerating lymphocytes, eosinophils, and macrophages; found in the medulla of the lobules of the thymus. Synonym: Hassall's bodies, Hassall's concentric corpuscle, Virchow-Hassall bodies. (05 Mar 2000) |
| thymic factor, circulating | <chemical> A thymus-dependent nonapeptide found in normal blood. Stimulates the formation of e rosettes and is believed to be involved in T-cell differentiation. Chemical name: Thymulin (12 Dec 1998) |
| thymic hormone | <endocrinology> One of the hormones produced by the thymus that are believed to play a role in the maturation of T-lymphocytes and overall modulation of the immune system. Versions of several of them are under study as anti-HIV therapies-thymopentin and thymosin-a1 in particular. (09 Oct 1997) |
| thymic hypoplasia | diGeorge syndrome |
| thymic lymphopoietic factor | A glycoprotein (MW about 12,000) that has been extracted from thymus; this thymus-produced hormone(s) confers immunological competence on thymus-dependent cells and induces lymphopoiesis. (05 Mar 2000) |
| thymic veins | A number of small veins from the thymus emptying into the left brachiocephalic vein. Synonym: venae thymicae. (05 Mar 2000) |
| lymphopenic thymic dysplasia | An obsolete term for thymic alymphoplasia. (05 Mar 2000) |
| Albright's hereditary osteodystrophy | An inherited form of hyperparathyroidism associated with ectopic calcification and ossification and skeletal defects, notably the small fourth metacarpals, but intelligence is normal. There are dominant, recessive and X-linked forms. See: pseudohypoparathyroidism. Synonym: Albright's syndrome. (05 Mar 2000) |
| angioedema, hereditary | A genetic form of angioedema. (Angioedema is also referred to as Quinke's disease.) Persons with it are born lacking an inhibitor protein (called C1 esterase inhibitor) that normally prevents activation of a cascade of proteins leading to the swelling of angioedema. Patients can develop recurrent attacks of swollen tissues, pain in the abdomen, and swelling of the voice box (larynx) which can compromise breathing. The diagnosis is suspected with a history of recurrent angioedema. It is confirmed by finding abnormally low levels of C1 esterase inhibitor in the blood. Treatment options include antihistamines and male steroids (androgens) that can also prevent the recurrent attacks. Also called hereditary angioneurotic oedema. (12 Dec 1998) |
| angioneurotic oedema, hereditary | A genetic form of angioedema. (Angioedema is also referred to as Quinke's disease.) Persons with it are born lacking an inhibitor protein (called C1 esterase inhibitor) that normally prevents activation of a cascade of proteins leading to the swelling of angioedema. Patients can develop recurrent attacks of swollen tissues, pain in the abdomen, and swelling of the voice box (larynx) which can compromise breathing. The diagnosis is suspected with a history of recurrent angioedema. It is confirmed by finding abnormally low levels of C1 esterase inhibitor in the blood. Treatment options include antihistamines and male steroids (androgens) that can also prevent the recurrent attacks. Also called hereditary angioedema. (12 Dec 1998) |
| canine hereditary blindness | An autosomal dominant condition seen in dogs of the collie and several other breeds. (05 Mar 2000) |