Journals / Turkish Journal of Gastroenterology / 2012 / Cilt: 23 - Sayı: 3

Gastrointestinal stromal tümörler: 1160 vakayı içeren Türkiye de çok merkezli çalışma

Gastrointestinal stromal tumors: A multicenter study of 1160 Turkish cases

Pages
203–211
DOI
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⚡ TL;DR(Too Long; Didn't Read)

Conclusions: The results of this multicenter study demonstrated that features other than tumor size and mitosis and immune markers other than CD117 and Ki67 included in the antibody panel seem to be useful as predictive risk factors.

📌 3 Key Takeaways

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Objective & Hypothesis:Background/aims: The aim of this multicenter study was to determine the histopathological features and immunohistochemical profiles of gastrointestinal stromal tumors diagnosed in Turkish patients.
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Key Findings & Data:The diagnosis of gastrointestinal stromal tumor relied upon hematoxylin & eosin features and the results of antibody panel including CD117, CD34, desmin, smooth muscle actin, S-100 protein, and Ki67.
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Conclusion & Impact:Conclusions: The results of this multicenter study demonstrated that features other than tumor size and mitosis and immune markers other than CD117 and Ki67 included in the antibody panel seem to be useful as predictive risk factors.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Veri tabanı · İmmünohistokimya · Gastrointestinal stromal tümörler

Abstract

Background/aims: The aim of this multicenter study was to determine the histopathological features and immunohistochemical profiles of gastrointestinal stromal tumors diagnosed in Turkish patients. Material and Methods: Twenty-eight participating centers registered their gastrointestinal stromal tumor cases on a nationwide database. The diagnosis of gastrointestinal stromal tumor relied upon hematoxylin & eosin features and the results of antibody panel including CD117, CD34, desmin, smooth muscle actin, S-100 protein, and Ki67. The database consisted of parameters including age, gender, location, and all other histopathological and immunohistochemical findings. Statistical analysis was performed using Pearson, Kruskal-Wallis, Mann-Whitney U, and Spearman tests. Results: From all of the gastrointestinal stromal tumors in the database, 1160 cases with a male to female ratio of 1.22 and a mean age of 56.75 years were included in the study. The most common location was the stomach (45.0%), followed by the small intestine, omentum-peritoneum, large intestine, and esophagus (32.0%, 12.6%, 9.3%, 1.1%, respectively). The risk groups were distributed as: 6.1% very low, 21.7% low, 19.3% intermediate, and 53% high-risk cases. Many histopathologic findings were correlated with risk groups. CD117 was positive in 95.3% of gastrointestinal stromal tumors, whereas CD34 was positive in 74.9%, smooth muscle actin in 45.9%, desmin in 9.2%, and S-100 in 19.1.%. Though no significant relation was found between CD117 expression and tumor location, CD34, smooth muscle actin and Ki67 expressions significantly varied in different locations (p=0.001) and risk groups. Conclusions: The results of this multicenter study demonstrated that features other than tumor size and mitosis and immune markers other than CD117 and Ki67 included in the antibody panel seem to be useful as predictive risk factors.

Özet

Amaç: Bu çok merkezli çalışmada Türkiyeden toplanan gastrointestinal stromal tümör vakalarında histopatolojik ve immunohistokimyasal özellikleri belirlemek amaçlanmıştır. Yöntem ve Gereç: Oluşturulan ulusal bir veritabanına 28 merkezden gastrointestinal stromal tümör vakaları kaydedildi. Gastrointestinal stromal tümör tanısı hematoksilin-eosin bulgularına ve CD117, CD34, desmin, SM Actin, S-100 protein, ve Ki67yi içeren antikor paneli sonuçlarına dayandırıldı. Veritabanı yaş, cinsiyet, tümör yeri, di- ¤er histopatolojik ve immunhistokimyasal bulguları içermekteydi. Pearson, Kruskal Wallis, Mann Whitney U ve Spearman testleri kullanılarak istatistik araştırma yapıldı. Bulgular: Veritabanındaki 1160 gastrointestinal stromal tümör vakasında erkek/kadı n oranı 1.22 ve ortanca yaş 56.75 idi. En sık görülen yer mide (%45.0) olup, bunu ince barsak, omentum-periton, kalın barsak ve ösofagus izlemekteydi (Sırasıyla %32.0, %12.6, %9.3, %1.1). Vakaların %6.1'ü çok düşük, %21.7'si düşük, %19.3'ü orta ve %53'ü yüksek riskliydi. Pek çok histopatolojik bulgu risk gruplarıyla ilişkiliydi. CD117 %95.3 vakada pozitifken, %74.9 vakada CD34, %%45.9 SMA, %9.2 desmin, %19.1 S-100 pozitifdi. CD117 ile tümör yeri arasında anlamlı ilişki saptanmadı, ancak CD34, SMA ve Ki67 ekspresyonları tümör yerine ve risk gruplarına göre anlamlı fark gösterdi (p=0.001). Sonuç: Bu çok merkezli çalışma sonuçları, tümör çapı ve mitoz dışında patolojik ve CD117 ve Ki67 dışında immun önemli risk faktörleri oldu¤unu göstermektedir

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Cite This Article

DOĞUSOY, G. B., Turkish, G. W. G. (2012). Gastrointestinal stromal tümörler: 1160 vakayı içeren Türkiye de çok merkezli çalışma. Turkish Journal of Gastroenterology, Cilt: 23 - Sayı: 3, 203–211. https://ajindex.com/articles/409698

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