نتایج جستجو برای: medullary thyroid cancer
تعداد نتایج: 982512 فیلتر نتایج به سال:
Thyroid cancer is a malignancy of the thyroid parenchymal cells. There are four main types of thyroid cancer: papillary thyroid cancer (PTC), follicular thyroid cancer (FTC), anaplastic thyroid carcinoma (ATC), and Medullary thyroid carcinoma (MTC). Medullary thyroid cancer (MTC) is a rare neuroendocrine tumor of the thyroid gland derived from parafollicular C-cells that produce calcitonin (CT...
Background: Medullary thyroid cancer (MTC), includes 5-10% of all the thyroid cancers. RET proto-oncogene mutations have been found in association with MTC development. Therefore, identification of the mutations in RET can allow early diagnosis of the families who are at the risk of the disease. The goal of this study was to investigate existence and association between mutations in exon 19 of ...
medullary thyroid carcinoma (mtc) occurs in both sporadic (75%) and hereditary (25%) forms. the missense mutations of the rearranged during transfection (ret) proto-oncogene in mtc development have been well demonstrated. the aim of this study was to investigate frequency of g691s/s904s haplotype in mtc patients and their relatives.in this research 293 participants were studied, including 181 p...
Background: Thyroid carcinoma is the most frequent malignant tumor of the endocrine system in human body and accounts for nearly 1% of all cancers. Medullary thyroid carcinoma is the third frequent of thyroid cancer and accounts about 5-8% of thyroid cancer. Osteocalcin, known as a Bone Gamma-carboxyglutamic Acid-containing Protein (BGLAP), is the most non collagenous protein. Retinol binding p...
Medullary thyroid cancer accounts for 5%-10% of all thyroid cancers. The majority of medullary thyroid cancers are sporadic, but 20% of cases are a result of a germline mutation in the ret proto-oncogene. Hereditary medullary thyroid cancer can be seen as part of the multiple endocrine neoplasia syndrome type 2A or 2B or as part of familial medullary thyroid cancer. This article discusses the c...
Medullary thyroid cancer accounts for 5-10% of thyroid carcinomas. RET proto-oncogene mutations occur in all of the hereditary MTCs and about 66% of the sporadic MTCs. So, the detection of the RET mutations is necessary for rapid and proper diagnosis and treatment. This systematic review seeks to find a comprehensive list of RET gene mutations in the diagnosis of medullary thyroid cancer. The ...
this study was undertaken to define the epidemiological aspects of thyroid carcinoma in iran, an area of endemic iodine deficiency nearly until recently. the tehran cancer institute data system registry (tcidsr) was used to identify patients with different histological types of thyroid cancer (tc) in iran. data were analyzed from 438 thyroid cancer cases identified by the tcidsr in 1998-99. dis...
Background: Thyroid cancer is the most common endocrine malignancy. Accounting for approximately 1-2% of all cancers. Thyroid cancers have been divided into four main types: papillary, follicular, medullary and anaplastic. The active form of vitamin D (1,25- (OH) 2-vitamin D3) by binding to its receptor, using genomic and non-genomic mechanisms inhibits the proliferative effect of TSH on thyroi...
Medical records of 228 patients who had undergone thyroid surgery were studied. There were 179 females and 49 males with mean age of 33-8 years. Pre-op. diagnosis was cold nodule in 4. 4 %. Pathology diagnosis was simple goiter in 54%, adenoma in 23%, thyroid cancer in 15% and colloid cyst in 5.3% of the patients. Among carcinomas 68% were papillary, 29% follicular and 3% medullary. There were1...
Parathyroid carcinoma is the rarest endocrine cancer with aggressive behaviour. It may be presented as a feature of severe hypercalcemia, musculoskeletal involvement and neck mass. There should high clinical suspicion if there marked very parathyroid hormone levels, palpable mass, recurrent laryngeal nerve palsy due to invasion bone renal symptoms. Thyroid pathology has been seen in 15-70% pati...
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