Endocrine Abstracts

Objective: To compare the results of immunohistochemistry (IHC) and DNA sequencing in detection of BRAF V600E mutation in papillary thyroid carcinomas (PTC). BRAF V600E mutation is the most common genetic alteration in papillary thyroid carcinomas and is associated with worse prognosis. Direct sequencing is usually performed, but less expensive immunohistochemistry can be used instead.Methods: Study was performed in 54 consecutive PTCs during 2014–2...

In our centre we use CNB for routine study of thyroid nodules since 2005. Four diagnostic categories for CNB’s results have been standardised: insufficient; benign; follicular proliferation (FOL), including follicular and oncocytic neoplasms; and malignant. Diagnosis of FOL was defined according to the presence of microfollicular patterned biopsies with scant or absent colloid, sometimes with minimal pleomorphism or discrete nuclear changes. This category could be equival...

Introduction: The discovery of incidental thyroid carcinomas (ITC) in patients undergoing surgery for a benign disease range between 3 and 16% of cases. During years, patients with hyperthyroidism were considered protected by TSH suppression (TSH is well known factor that favors the development of thyroid cancer). Thyroid size might be a predictive factor due to the excess of thyroid tissue prone to mutations. The knowledge of determining factors foretelling the presence of un...

Thyroid carcinoma is a rare extraintestinal manifestation of colonic familial adenomatous polyposis (FAP). This syndrome is caused by germline mutations in adenomatous polyposis coli (APC) gene, on chromosome 5q21-q22. Many patients manifest various extracolonic features: upper gastrointestinal adenomas, congenital hypertrophic retinal pigment epithelial lesions, desmoids tumors, and thyroid, adrenal and brain cancers. It has been reported an incidence of 1.2% of thyroid carci...

Higher serum TSH has been recently postulated as a predictor of thyroid malignancy in nodular thyroid disease. In addition, some reports have demonstrated its association with more advanced stages of differentiated thyroid cancer (DTC).Material and methods: We collected retrospectively preoperative serum TSH from patients who underwent total thyroidectomy in the period 2005–2011 in a single tertiary center. We recorded demographic data, nodule numbe...

Increasing incidence of papillary thyroid microcarcinoma (PTMC) is due to accurate histological study of surgical specimens (incidental, INC) or to improved preoperative diagnostic techniques (preoperatively diagnosed, PD). We evaluate the differences between both groups of PTMC from 2000 to 2009.We reviewed data of patients diagnosed of PTMC (<10 mm) during the last decade with complete follow-up since surgery. Demographic data, tumour size, histolo...

Introduction: There are a few hypothyroid patients who are refractory to standard thyroid hormone replacement treatment and require unexpectedly high doses of levothyroxine. In addition to clinical situations where hypothyroid patients are non-compliant (pseudomalbsortion), or where there is the possibility of excipient-induced disease exacerbation, therapeutic failure may be due to impaired absorption of the administered drug. The common approach to managing patients is to es...

In our centre, thyroid core-biopsy (CB) has replaced fine needle aspiration biopsy (FNAB) in the study of thyroid nodules because its better accuracy. International guidelines recommend repeating the FNA in cases of inadequate or insufficient first specimen, but nothing is published about the case in failed CB.Objective: To study the differences between nodules with inadequate and diagnostic thyroid Core Biopsy and the accuracy of repeating a CB after a ...

The clinical significance and potential morbidity of papillary thyroid microcarcinomas (PTMC) is discussed. Particularly the differences between those PTMC identified postoperatively in histological examination (incidentals), and those diagnosed preoperatively (non-incidentals). We retrospectively analysed differences in clinical presentation and course after treatment in these two groups. The study population consisted of 199 patients with PTMC who underwent surgery from 2000...

Introduction: BRAF(V600E) mutation has received great attention to improve risk stratification in patients with PTC. Its prognostic value in the different Cytological variants (CytV) of PTC is not well established. The aim of this study was to investigate differences in clinicopathological features according to CytV, among patients harbouring the mutation.Methods: We evaluated 102 patients with pathological diagnosis of PTC. All of them underwent total t...