Prognostic role of the Bethesda System for conventional papillary thyroid carcinoma

Head & Neck ◽  
2016 ◽  
Vol 38 (10) ◽  
pp. 1509-1514 ◽  
Author(s):  
Hye Mi Gweon ◽  
Hye Ryoung Koo ◽  
Eun Ju Son ◽  
Jeong-Ah Kim ◽  
Ji Hyun Youk ◽  
...  
Keyword(s):  
Papillary Thyroid Carcinoma ◽  
Thyroid Carcinoma ◽  
Papillary Thyroid ◽  
Prognostic Role ◽  
Bethesda System ◽  
The Bethesda System

scholarly journals Immunohistochemistry on cell blocks a method for pre-operative diagnosis of papillary thyroid carcinoma by FNAC

2018 ◽  
Vol 60 (2) ◽  
pp. 102-104
Author(s):  
Hussain A. Aljebori
Keyword(s):  
Thyroid Cancer ◽  
Papillary Thyroid Carcinoma ◽  
Thyroid Carcinoma ◽  
Papillary Carcinoma ◽  
Reliable Method ◽  
Papillary Thyroid ◽  
Brafv600e Mutation ◽  
Highly Sensitive ◽  
Bethesda System

Background: Papillary thyroid carcinoma (PTC) is the commonest thyroid cancer. Cases in category-5a of Bethesda system (suspicious for papillary carcinoma) are treated by surgical lobectomy followedby total thyroidectomy if histopathology confirms papillary carcinoma. In order to reduce surgicalprocedures to one this was conducted.Objectives: evaluation of role of immunohistochemistry in pre-operative diagnosis of papillary thyroidcarcinoma on cell blocks.Materials and Method: Cell blocks were taken from cases labelled category-5a for histopathology andimmunohistochemistry using three markers (CK-19, Thyro-peroxidase, and BRAFv600E mutation).Results: were highly sensitive, and specific. The use of more than markers increases sensitivity of theprocedure.Conclusion: immunohistochemical stains on cell blocks is a reliable method for pre-operative diagnosisof papillary thyroid carcinoma.

Cytological Diagnosis of Follicular Variant of Papillary Thyroid Carcinoma before and after the Bethesda System for Reporting Thyroid Cytopathology

2016 ◽  
Vol 60 (1) ◽  
pp. 14-18 ◽  
Author(s):  
Roghayeh Fazeli ◽  
Christopher J. VandenBussche ◽  
Justin A. Bishop ◽  
Syed Z. Ali
Keyword(s):  
Papillary Thyroid Carcinoma ◽  
Thyroid Carcinoma ◽  
Surgical Resection ◽  
Follicular Neoplasm ◽  
Papillary Thyroid ◽  
Follicular Variant ◽  
Bethesda System ◽  
Thyroid Cytopathology ◽  
The Bethesda System ◽  
The Impact

Background: The follicular variant of papillary thyroid carcinoma (FVPTC) is the second most common subtype of papillary carcinoma after the classical variant. The Bethesda System for Reporting Thyroid Cytopathology (TBSRTC) has been introduced to standardize the practice of thyroid fine needle aspiration (FNA) reporting. We evaluated the impact of TBSRTC on the FNA interpretation of histologically proven FVPTCs. Method: Cytology reports of 455 histologically proven FVPTCs were reviewed. The rate of each TBSRTC category was compared between pre- and post-TBSRTC eras. Results: The distribution of FNA diagnoses for pre-TBSRTC cases included suspicious for follicular neoplasm (SFN; n = 51, 28.7%), papillary thyroid carcinoma (PTC; n = 47, 26.4%), suspicious for malignancy (SFM; n = 32, 18%), atypia of undetermined significance (AUS; n = 23, 13%), benign (n = 18, 10.1%), and nondiagnostic (ND; n = 7, 4%). Post-TBSRTC diagnoses were: AUS (n = 68, 24.6%), PTC (n = 64, 23.1%), SFM (n = 50, 18%), SFN and benign (n = 42, 15.2%) and ND (n = 11, 4%). SFN rate decreased significantly from 28.7 to 15.2% (p = 0.001) and AUS increased from 12.9 to 24.5% (p = 0.003). Conclusion: Following implementation of TBSRTC, the frequency of AUS diagnoses on FNA prior to surgical resection increased. Given that the rate of FVPTC diagnoses on thyroidectomy increased over the same period, this suggests that the use of AUS has resulted in greater surgical resection of FVPTC.

scholarly journals Immunohistochemistry on cell blocks a method for pre-operative diagnosis of papillary thyroid carcinoma by FNAC

2018 ◽  
Vol 60 (2) ◽  
pp. 102-104
Author(s):  
Hussain A. Aljebori
Keyword(s):  
Thyroid Cancer ◽  
Papillary Thyroid Carcinoma ◽  
Thyroid Carcinoma ◽  
Papillary Carcinoma ◽  
Reliable Method ◽  
Papillary Thyroid ◽  
Brafv600e Mutation ◽  
Highly Sensitive ◽  
Bethesda System

Background: Papillary thyroid carcinoma (PTC) is the commonest thyroid cancer. Cases in category-5a of Bethesda system (suspicious for papillary carcinoma) are treated by surgical lobectomy followedby total thyroidectomy if histopathology confirms papillary carcinoma. In order to reduce surgicalprocedures to one this was conducted.Objectives: evaluation of role of immunohistochemistry in pre-operative diagnosis of papillary thyroidcarcinoma on cell blocks.Materials and Method: Cell blocks were taken from cases labelled category-5a for histopathology andimmunohistochemistry using three markers (CK-19, Thyro-peroxidase, and BRAFv600E mutation).Results: were highly sensitive, and specific. The use of more than markers increases sensitivity of theprocedure.Conclusion: immunohistochemical stains on cell blocks is a reliable method for pre-operative diagnosisof papillary thyroid carcinoma.

New Concept of the Encapsulated Follicular Variant of Papillary Thyroid Carcinoma and Its Impact on the Bethesda System for Reporting Thyroid Cytopathology: A Single-Institute Experience

2016 ◽  
Vol 60 (3) ◽  
pp. 198-204 ◽  
Author(s):  
Sule Canberk ◽  
Pembegul Gunes ◽  
Mine Onenerk ◽  
Murat Erkan ◽  
Emine Kilinc ◽  
...  
Keyword(s):  
Papillary Thyroid Carcinoma ◽  
Thyroid Carcinoma ◽  
Follicular Neoplasm ◽  
Papillary Thyroid ◽  
Follicular Variant ◽  
Bethesda System ◽  
The Subject ◽  
Thyroid Cytopathology ◽  
The Bethesda System

Background: The encapsulated follicular variant (EFV) of papillary thyroid carcinoma (PTC) is the most discussed entity in thyroid pathology. Recently, the question of whether or not EFV-PTC is a malignant entity has been the subject of renewed discussion in the light of recent molecular and clinical studies. The aim of this study was to analyze the malignancy ratios of each category of the Bethesda System for Reporting Thyroid Cytopathology (TBSRTC) if EFV-PTC is no longer considered as a malignant entity. Materials and Methods: Data on thyroid fine-needle aspirations (n = 1,886) with surgical follow-up between 1999 and 2014 were studied. EFV-PTC cases constituted 27% (94/343) of the malignant cases. Results: Malignancy ratios were determined as nondiagnostic, benign, atypia/follicular lesion of undetermined significance, suspicious for follicular neoplasm/follicular neoplasm, suspicious for malignancy, and malignant categories of the TBSRTC in 13, 7, 45, 30, 72 and 98%, respectively. If EFV-PTC was not regarded as malignant, malignancy ratios would decrease to 6.5, 6, 30, 10, 48, and 87% for each category in the same order. Conclusions: The current study showed that the most significant decrease in relative malignancy ratios was seen in the suspicious for follicular neoplasm/follicular neoplasm category (66% relative decrease), but all categories represented a considerable decrease.

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