نتایج جستجو برای: thyroid gland irradiation
تعداد نتایج: 213102 فیلتر نتایج به سال:
OBJECTIVES To assess the rate of thyroid gland invasion and the need for thyroidectomy in advanced laryngeal and hypopharyngeal carcinomas that require total laryngectomy. PATIENTS AND METHODS Between 1994 and 2001, 129 total laryngectomy with ipsilateral hemithyroidectomy and 14 total laryngopharyngectomy with total thyroidectomy operations were performed for primary squamous cell carcinoma ...
OBJECTIVES The majority of childhood cancer patients now achieve long-term survival, but the treatments that cured their malignancy often put them at risk of adverse health outcomes years later. New cancers are among the most serious of these late effects. The aims of this review are to compare and contrast radiation dose-response relationships for new solid cancers in a large cohort of childho...
In the thyroid gland of mammals, except the basic follicular (F) cells, parafollicular (C) cells are detected. They belong to disperse neuroendocrine cells of the APUD system. Co-localisation of F and C cells in the thyroid gland is not accidental. It seems possible that there is an interaction between them, mediated by the peptidergic hormones. Calcitonin (CT) is proposed as an essential indic...
The thyroid gland is the largest classic endocrine organ that effects many organs of the body and plays a significant role in the process of Metabolism in animals. The aim of this study was to investigate the prevalence of thyroid disorders diagnosed by ultrasound and microscopic Lesions of the thyroid during the slaughter of apparently healthy One Humped Camels (Camelus dromedarius) in Iran. R...
Ectopic intrathyroidal thymic tissue can form a mass lesion within the thyroid gland and has rarely been reported in children. We report a case of intrathyroidal thymus accompanied by an intrathyroidal parathyroid gland in a 29-year-old woman who visited our hospital due to right neck mass diagnosed as metastatic papillary carcinoma by aspiration cytology in an outside hospital. She had a histo...
Effect of Thyroid Activity Modulation on Some Histological and Biochemical Aspects in Broiler Chicks
An experiment was conducted to investigate the effect of thyroid gland activity modulation (Hyper or hypothyroidism) on energy utilization in broiler chickens. Two hundred and forty one-day-old Cobb broiler chicks were distributed into three dietary metabolizable energy (ME) treatment groups (80 chicks each). The control group (E0) was fed basal diet (3150 kcal/kg diet), the second group (E1) w...
The thyroid gland is the only source of thyroid hormone production. Thyroid hormone is essential for growth and development, and is of special importance for the development of the central nervous system. It was for that reason that neonatal screening on congenital hypothyroidism was introduced and is now performed in many countries. Defects in thyroid hormone production are caused by several d...
Since 1963 lithium treatment has been the best proven long-term pharmacotherapy for bipolar disorder (BD), both in the prevention of depressive and manic episodes, along with the reduction of the suicide risk. Thyroid gland and the hypothalamic-pituitary-thyroid (HPT) axis play a role in the pathophysiology, clinical course and treatment of BD. The influence of lithium on the thyroid gland is o...
Ectopic thyroid tissue refers to presence of thyroid tissue at locations away from the normal site in the pretracheal region in the lower neck. Few of such cases are associated with a functioning thyroid gland in its normal anatomical location. However in many cases, the ectopic thyroid gland is the only functioning thyroid. Radionuclide scan is mandatory when dealing with an ectopic thyroid le...
INTRODUCTION Hyperthyroidism is a syndrome caused by the excessive production and secretion of the thyroid hormones T3 and T4 by an autonomous thyroid gland. Feline hyperthyroidism was first reported in 1979 and since then it has become a common disease in cats. Histopathology of affected thyroids usually reveals thyroid hyperplasia or benign thyroid adenoma, however in a small percentage of ca...
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