نتایج جستجو برای: fmtc
تعداد نتایج: 68 فیلتر نتایج به سال:
OBJECTIVE This retrospective multicenter study, centrally conducted and supported by the Society of Endocrinology and Metabolism of Turkey, aimed to evaluate the impact of free RET proto-oncogene testing in medullary thyroid carcinoma (MTC) patients. Surgical timing, adequacy of the treatment, and frequency of prophylactic thyroidectomy (PTx) in mutation carriers were also assessed. METHODS G...
Multiple endocrine neoplasia type 2A (MEN2A) is a syndrome of familial neoplasias characterized by medullary thyroid carcinoma (MTC), pheochromocytoma and hyperplasia of the parathyroid glands. RET protooncogene mutations are responsible for MEN 2A. Mutations in exons 10 or 11 have been identified in more than 96% of patients with MEN 2A. We herein report for the first time a patient with MEN 2...
The cut-off values able to differentiate between reactive or neoplastic C-cell hyperplasia (CCH) or to predict sporadic medullary thyroid cancer (MTC) are still debated both for basal and stimulated calcitonin (bCT and sCT). In the present study, the prevalence and the histological patterns of CCH in 15 patients with multinodular goiter (MNG), bCT>10 pg/ml and sCT levels >50 pg/ml were studied....
The structure and function of numerous genes involved in process of carcinogenesis have been established through explosive development of molecular oncogenetics during last 15 years. Depending on the function in the cell, these genes are divided into proto-oncogenes and tumor suppressor genes. Proto-oncogenes are normal cellular genes that perform and control essential functions in the cell: gr...
Multiple endocrine neoplasia (MEN) is a group of heterogenous syndromes characterized by the occurrence two or more gland tumors in patient related individuals same family. They are inherited an autosomal dominant fashion and highly penetrant. There three types MEN syndromes: type 1 (MEN1), 2 (MEN2), 4 (MEN4). MEN2 further divided into MEN2A, MEN2B (formerly known MEN3), familial medullary thyr...
OBJECTIVE Twenty years ago, the groundbreaking discovery that rearranged during transfection (RET) mutations underlie multiple endocrine neoplasia 2 (MEN2) and familial medullary thyroid cancer (FMTC) ushered in the era of personalized medicine. MEN2-associated signs, taking time to manifest, can be subtle. This study sought to clarify to what extent conventional estimates of 1:200 000-500 000 ...
مقدمه: سرطان تیرویید شایع ترین بدخیمی سیستم غدد درون ریز است که به چهار نوع پاپیلاری، فولیکولار، مدولاری و آناپلاستیک تقسیم میگردد. سرطان مدولاری تیرویید (mtc) از بدخیم ترین انواع سرطان تیرویید است و تا 10 درصد کـل انواع این بیماری را شامل میشود. الگوی توارث mtc به صورت اتوزوم غالب است و رخــداد جهش های افـزایش عملکــرد پروتوآنکــوژن ret در ایجاد آن به خوبــی شنــاخته شــده است. mtc به دو صور...
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