نتایج جستجو برای: thyroid nodules
تعداد نتایج: 99740 فیلتر نتایج به سال:
Thyroid cancer is the most common endocrine malignancy. However, more than 90% of thyroid nodules are benign. It remains unclear whether thyroid carcinoma arises from preexisting benign nodules. Metabolomics can provide valuable and comprehensive information about low molecular weight compounds present in living systems and further our understanding of the biology regulating pathological proces...
The object of this study is to evaluate the additional role of RAS mutation in detecting thyroid malignancy among BRAF mutation-negative nodules diagnosed as atypia of undetermined significance/follicular lesion of undetermined significance (AUS/FLUS) on cytology.From December 2009 to December 2011, 202 BRAF mutation-negative thyroid nodules diagnosed as AUS/FLUS cytology in 201 patients were i...
OBJECTIVE To determine the factors associated with thyroid cancer, focusing on first-degree family history and ultrasonography (US) features, in euthyroid asymptomatic patients with thyroid nodules. MATERIALS AND METHODS This retrospective study included 1310 thyroid nodules of 1254 euthyroid asymptomatic patients who underwent US-guided fine-needle aspiration biopsy between November 2012 and...
BACKGROUND AND PURPOSE Bethesda class III cytology is an important limitation of the US-FNA in assessing thyroid nodules. This study aimed to assess the diagnostic efficacy of US in evaluating thyroid nodules with Bethesda class III cytology. MATERIALS AND METHODS From January 2008 to December 2009, 1036 patients with 1289 thyroid nodules diagnosed by US and subsequent US-FNA biopsy were enro...
UNLABELLED Thyroid nodules are a common occurrence in the general population, and these incidental thyroid nodules are often referred for ultrasound (US) evaluation. US provides a safe and fast method of examination. It is sensitive for the detection of thyroid nodules, and suspicious features can be used to guide further investigation/management decisions. However, given the financial burden o...
Thyroid nodule prevalence is about 1.8% in healthy children; however, malignancy frequency is higher than in adults. Approximately 26.4% of thyroid nodules generate thyroid cancer in childhood. Coexisting thyroid disease, history of irradiation of the neck, post-pubertal age, female sex, and thyroid malignancy in the family are risk factors for developing nodules. After evaluation of the medica...
This study aimed to identify factors that affect the size of benign thyroid nodules and to predict nodule size by using a newly developed model. Because most thyroid nodules are benign, they are commonly only monitored. Only a few studies have evaluated the natural progression or regression of benign thyroid nodules. Large-scale studies on the subject are nonexistent. Between January 2001 and D...
Approach to incidental thyroid nodules on imaging Thyroid cancer is the fastest increasing cancer in the USA. An exponential increase in incidence of thyroid cancer has been partly attributed to an increased work-up of incidentally detected thyroid nodules on imaging, especially ultrasound and CT. Excessive workup of incidental thyroid nodules and overdiagnosis of subclinical cancers is a costl...
Background: Fine needle aspiration (FNA) has led to a decrease in unnecessary surgeries for thyroid nodules. This study was designed to compare diagnostic value of FNA and frozen section methods in the follicular lesions. Methods: This is a cross-sectional study based on the medical records of 42 patients who were referred to surgery clinic of Rasool-e-Akram hospital in Tehran with complain...
OBJECTIVE The objective of this retrospective study was to develop and validate a simple diagnostic prediction model by using ultrasound (US) features of thyroid nodules obtained from multicenter retrospective data. MATERIALS AND METHODS Patient data were collected from 20 different institutions and the data included 2000 thyroid nodules from 1796 patients. For developing a diagnostic predict...
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