نتایج جستجو برای: medullary thyroid carcinoma

تعداد نتایج: 461343  

Journal: :Internal medicine 2011
Ikuko Ueki Takao Ando Ai Haraguchi Ichiro Horie Misa Imaizumi Tomayoshi Hayashi Tatsuya Uga Toshiro Usa Atsushi Kawakami

A medullary thyroid carcinoma is a malignant tumor derived from the C-cells of the thyroid. Despite their distinct embryological origin, medullary thyroid carcinomas are exceptionally accompanied by a tumor derived from the follicular cells; this is defined as mixed medullary and follicular cell carcinoma. There have been controversies regarding the origin of this rare mixed thyroid carcinoma q...

احیائی, سمیرا, امینی, سید اسدالله, شیخ‌الاسلامی, سارا, ظریف یگانه, مرجان, هدایتی, مهدی,

Background: Thyroid carcinoma is the most common endocrine malignancy and approximately accounts 2% of all cancer cases. Medullary thyroid cancer (MTC) is an endocrine tumor with differentiation of Parafollicular or C-cells and is categorized into hereditary or sporadic types. Medullary thyroid carcinoma approximately accounts for 5-10% of all thyroid carcinoma. Germ-line and somatic mutations ...

Fereydoun Azizi, Firooz Egieh, Mahmoud Emami-Meybodi, Mohammad Kargar-Sarafraz, Mohammad Yazdani-Kachoyi,

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...

Journal: :Japanese journal of clinical oncology 1997
M Iihara T Yamashita T Okamoto M Kanbe K Yamazaki S Egawa K Yamaguchi T Obara

MEN (multiple endocrine neoplasia) type 2 syndrome is an inherited disease characterized by medullary thyroid carcinoma, pheochromocytoma, hyperparathyroidism and/or developmental anomalies. Germ-line mutations of the RET proto-oncogene have recently been identified as the underlying cause of the syndrome. Accordingly, several investigators have advocated prophylactic total thyroidectomy for me...

2016
Muhammad Owais Rashid Naeemul Haq Saad Farooq Zareen Kiran Sabeeh Siddique Shahid Pervez Najmul Islam

BACKGROUND In 2015, thyroid carcinoma affected approximately 63,000 people in the USA, yet it remains one of the most treatable cancers. It is mainly classified into medullary and non-medullary types. Conventionally, medullary carcinoma was associated with heritability but increasing reports have now begun to associate non-medullary thyroid carcinoma with a genetic predisposition as well. It is...

اسدی آملی, فهیمه , حائری, هایده ,

In this paper we have reported and discussed an unusual histopathologic feature of medullary carcinoma which is one of the pitfalls in the diagnosis of this tumor. The patient was a 14 years old girl who complained of painless, gradually growing cervical mass from one year ago. She had no history of head and neck radiotherapy of familial history of thyroidal or other endocrine disease. In labor...

2017
Yuejia Song Min Zhou Yang Cao Jiping Qi Jingshu Geng Xiaomin Liu

Recent reports have demonstrated that long-term and high dosage treatments with incretin-based medicine, such as hormone glucagon-like peptide-1 (GLP-1) may induce thyroid C-cell pathological changes in rodents, rather than in humans. Doubts regarding the tumorigenic potential of GLP-1 analogues in human thyroid C-cells remain. The present study aimed to determine the expression levels of GLP-1...

Journal: :iranian journal of nuclear medicine 1995
mohsen saghari mahasti amoui reza najafi gholamali shabani fatemeh esfahanian

twenty-one patients with medullary thyroid carcinoma were studied prospectively with tc-99m (v) dmsa after surgery. pentavalent dmsa scintigram demonstrated abnormal uptake in 13 and equivocal uptake in 6 patients. finally, seven patients with surgical or other imaging documentation were selected for this paper. most of these patients were asymptomatic. six patients had hypercalcitonemia and se...

Journal: :Clinics (Sao Paulo, Brazil) 2009
Joya Emilie M. Correia-Deur Rodrigo A. Toledo Alice T. Imazawa Delmar M. Lourenço Marilza C. L. Ezabella Marcos R. Tavares Sergio P. A. Toledo

INTRODUCTION Medullary thyroid carcinoma may occur in a sporadic (s-medullary thyroid carcinoma, 75%) or in a multiple endocrine neoplasia type 2 form (MEN2, 25%). These clinical forms differ in many ways, as s-medullary thyroid carcinoma cases are RET-negative in the germline and are typically diagnosed later than medullary thyroid carcinoma in MEN2 patients. In this study, a set of cases with...

دهقانی اشکذری, محمود , هدایتی, مهدی , گلاب قدکساز, هدی ,

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 ...

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