نتایج جستجو برای: thyroid tumors
تعداد نتایج: 255683 فیلتر نتایج به سال:
Among all the adaptations of cancer cells, their ability to change metabolism from the oxidative to the glycolytic phenotype is a hallmark called the Warburg effect. Studies on tumor metabolism show that improved glycolysis and glutaminolysis are necessary to maintain rapid cell proliferation, tumor progression, and resistance to cell death. Thyroid neoplasms are common endocrine tumors that ar...
Despite many advances in the field of cancer treatment, intra-cranial tumor cases still have a poor prognosis. This research has been carried out in order to describe age and sex distributions and histopathological characteristics and site of intra-cranial tumors. We studied 425 patients with intra-cranial tumor whose samples were examined in pathology center of Imam Khomeini hospital from 1991...
Calcitonin is the hallmark of medullary thyroid carcinoma. However, extrathyroidal neuroendocrine tumors can also release calcitonin.We report 2 cases of calcitonin-secreting pancreatic tumors found in asymptomatic patients with thyroid nodules referred to our center within 11 months.Case 1: A man initially referred for thyroid nodule characterization was found to have hypercalcitoninemia (>200...
the host thyroid. The tumors themselves showed extremely low incorporation, although thyroidectomy of the host significantly increased the incorporation in the tumors. However, results of incorporation experiments do not distinguish the transitional from the autonomous tumors. Tumor growth also caused iodide peroxidase activity in the host thyroid to decline. The enzyme activity in the transiti...
PURPOSE Thyroid nodules are common, with a lifetime risk of developing a clinically significant thyroid nodule of 10% or higher. Preoperative diagnosis was greatly enhanced by the introduction of fine needle aspiration in the 1970s, but there has been little advancement since that time. Discrimination between benign and malignant follicular neoplasms is currently not possible by fine needle asp...
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