Journals / Tıp Araştırmaları Dergisi / 2009 / Cilt: 7 - Sayı: 1

Cytokeratin 19, galectin-3, HBME1 and HMWK immunohistochemistry in the differential diagnosis of thyroid carcinomas

Tiroid karsinomlarında sitokeratin-19, yüksek molekül ağırlıklı keratin, galektin-3 Ve Hbme-1ekspresyonunun ayırıcı tanıdaki yeri

Pages
37–46
DOI
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⚡ TL;DR(Too Long; Didn't Read)

In follicular tumours; all antibodies were expressed significantly (p<0.05) and in high levels (CK-19 %92.9, HMWK %50, GAL-3 %85.7, HBME-1 %78.6) in the group of follicular variant of papillary carcinomas and the highest diagnostic accuracy was obtained especially with the antibody GAL-3 (96.5%).

📌 3 Key Takeaways

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Objective & Hypothesis:Purpose: Epithelial malignant tumours of thyroid represent the most common malignancies of the endocrine system.
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Key Findings & Data:Methods: For this reason, 75 cases among 152 thyroid carcinomas, and 24 follicular adenomas were studied.
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Conclusion & Impact:In follicular tumours; all antibodies were expressed significantly (p<0.05) and in high levels (CK-19 %92.9, HMWK %50, GAL-3 %85.7, HBME-1 %78.6) in the group of follicular variant of papillary carcinomas and the highest diagnostic accuracy was obtained especially with the antibody GAL-3 (96.5%).
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

Purpose: Epithelial malignant tumours of thyroid represent the most common malignancies of the endocrine system. However, morphologic similarities between benign and malignant thyroid lesions are frequent, which lead diagnostic problems among pathologists and cause disagreement. Methods: For this reason, 75 cases among 152 thyroid carcinomas, and 24 follicular adenomas were studied. Retrospective evaluation of the histopathologic parameters using immunohistochemical markers [Cytokeratin 19 (CK-19), High Molecular Weight Keratin (HMWK), Galectin 3 (GAL-3), Mesotelial cell antibody (HBME-1)] was re-examined. The median age of the carcinoma cases was 44.8±15.7 and F/M ratio was 3/1 (56/19). Concerning the histopathologic parameters, the tumour types showed no significant differences except from their sizes. Results: Tumour size was prominently and significantly (p< 0.05) greater in men than in women and greater in the tumors with poor prognosis than the tumors with good prognosis (p<0.05). Each of the applied immune markers were fairly significant and expressed in elevated levels in papillary thyroid carcinomas (CK-19 %97.3, HMWK %70.3, GAL-3 %91.9 and HBME-1 %83.8) when compared to the other carcinoma types and adenomas (p<0.05). Conclusions: Among the carcinomas; the highest value in the coexpression of whichever of the two antibodies was set in the combination of CK-19 and GAL-3 in papillary carcinomas (sensitivity 91%, specifity 95% and accuracy 93%). In follicular tumours; all antibodies were expressed significantly (p<0.05) and in high levels (CK-19 %92.9, HMWK %50, GAL-3 %85.7, HBME-1 %78.6) in the group of follicular variant of papillary carcinomas and the highest diagnostic accuracy was obtained especially with the antibody GAL-3 (96.5%).

Özet

Amaç: Endokrin organlar içinde en fazla malign tümörü görülen dokusunun epitelyal malign neoplazmlarının tanısında altın standart rutin histopatolojik incelemedir. Ancak, gerek benign gerekse malign epitelyal tümörlerin histolojik tiplerinde benzer morfolojik özelliklerin varlığı, ayırıcı tanıda sorun yaratmaktadır. Gereç ve yöntem: Bu amaçla 152 karsinomu arasından seçilen 75 malign olgu ile 24 folüküler adenom olgusu histopatolojik parametreler açısından ve immünohistokimyasal belirleyiciler [Sitokeratin –19 (CK-19), yüksek moleküler ağırlıklı keratin (HMWK), galektin-3 (GAL-3) ve mezotelyoma antikoru (HBME-1)] uygulanarak retrospektif olarak yeniden incelendi. Karsinom olgularımızda yaş ortalaması 44.8±15.7, K/E oranı 3/1 (56/19) di. Bulgular: Erkeklerde kadınlara kıyasla, ve kötü prognoza sahip karsinom tiplerinde, iyi prognoza sahip papiller karsinomlara göre, tümör boyutu belirgin derecede büyük ve anlamlıydı (p< 0.05). Uygulanan her bir immün belirleyicinin papiller karsinomlarında ( CK 19 % 97.3, HMWK % 70.3, GAL-3 % 91.9 ve HBME-1 % 83.8), diğer karsinom tiplerine ve adenom olgularına kıyasla oldukça anlamlı ve yüksek oranda ekspresyonu saptandı (p< 0.05). Sonuç: Karsinomlar arasında; herhangi iki antikor koekspresyonunda en yüksek değer, papiller karsinomlarda CK-19 ve GAL-3 (Duyarlık %91, seçicilik %95, tanısal doğruluk %93) kombinasyonunda saptandı. Folüküler tümörlerde ise; papiller karsinom folüküler varyant grubunun diğer gruba göre tüm antikorları anlamlı (p< 0.05) ve yüksek oranlarda (CK-19 %92.9, HMWK %50, GAL-3 %85.7, HBME-1 %78.6) eksprese ettiği saptanmış ve özellikle de GAL-3 ile en yüksek tanısal doğruluk (%96.5) sağlanmıştır.

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Cite This Article

POLAT, İ. (2009). Cytokeratin 19, galectin-3, HBME1 and HMWK immunohistochemistry in the differential diagnosis of thyroid carcinomas. Tıp Araştırmaları Dergisi, Cilt: 7 - Sayı: 1, 37–46. https://ajindex.com/articles/361974

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