The relationship between preoperative CA 19-9 and CEA levels and histopathology of tumor in colorectal cancer

Öz

Abstract Aim: Colorectal cancer is a serious disease that can result in death. The fact that cancer markers and early diagnosis increase the effectiveness of treatment reveals the need for multidimensional research on this subject. TNM classification of colorectal cancer is shows the prognosis. In our study, the relationship between preoperative CEA and CA 19-9 values and histopathology of tumor and preoperative predictive value of tumor markers in colorectal cancer patients were investigated. Materials and Methods: 153 patients diagnosed with colorectal cancer were included in the study. The histopathological data in the resection materials of the patients who were operated by General Surgery Department were collected from the pathology reports. Clinical data were collected by retrospective scanning of patient files. Results: The mean age of the patients was 64 (± 11.39) years. 51.6% were male and 48.4% were female. CEA was found to be positive in 35.3% of the patients, while this rate was 20.9% for CA 19-9. In our study, CEA and CA 19-9 positivity were significantly correlated with TNM stage of tumor, depth of invasion, lymphovascular invasion, perineural invasion, nodal involvement and metastasis. In addition, the mean age of CA 19-9 positive cases was significantly higher than the negative ones. The mean tumor size of CEA positive cases was significantly higher than the negative ones. Conclusion: CEA and CA19-9 are valuable both in demonstrating advanced stage tumors and in detecting malignancy in tumors detected in advanced ages. Since survival decreases as the stage progresses, positive CEA and CA19-9 values are both associated with worse prognosis.

Anahtar Kelimeler

• CA-19-9
• carcinoembryonic antigen
• colorectal neoplasms

Kolorektal kanser nedeniyle opere olan hastalarda ameliyat öncesi CA 19-9 ve CEA düzeyleri ile tümörün histopatolojisi arasındaki ilişki

Öz

Öz Amaç: Kolorektal kanser yaygın ve ölümcül bir hastalıktır. Erken tanı, kanser tedavisinin başarı yüzdesini büyük oranda arttırdığından kanser belirleyicilerinin çok yönlü olarak araştırılması gereksinimi sürmektedir. Kolorektal kanserlerde tümörün TNM sınıflaması en önemli prognostik göstergedir. Çalışmamızda kolorektal kanserli hastalardaki preoperatif CEA ve CA 19-9 değerleri ve tümörün histopatolojisi arasındaki ilişki, tümör belirteçlerinin preoperatif prediktif değeri araştırılmıştır. Gereç ve Yöntem: Araştırmaya kolorektal kanser tanısı almış 153 hasta dahil edilmiştir. Klinik veriler hasta dosyalarının retrospektif olarak taranması yoluyla toplanmıştır. CEA değeri 5 ng/ml ve üzeri olgular ve CA 19-9 değeri 35 U/ml ve üzeri olgular pozitif kabul edilmiştir. Bulgular: Hastaların yaş ortalaması 64(±11.39) olup, %51,6 sı erkek, ve %48,4’ü kadındır. Hastaların %35,3 ünde CEA pozitif olarak saptanırken bu oran CA 19-9 için %20,9’ dur. Çalışmamızda CEA ve CA 19-9 pozitifliği ile tümörün TNM Evresi, invazyon derinliği, lenfovasküler invazyon, perinöral invazyon, nodal tutulum, metastaz istatistiksel olarak anlamlı düzeyde ilişkilidir. Ayrıca CA 19-9 pozitif olguların yaş ortalaması, negatif olanlara kıyasla anlamlı derecede yüksektir. CEA pozitif olguların tümör boyutu ortalaması, negatif olanlara göre anlamlı derecede yüksektir. Sonuç: CEA ve CA19-9, hem ileri evre tümörü göstermede hem de ileri yaşlarda saptanan tümörlerde malignite saptanmasında değerlidir. Evre ilerledikçe sağ kalım düştüğünden pozitif CEA ve CA19-9 değerleri her ikisi birden daha kötü prognoz ile ilişkilidir.

Anahtar Kelimeler

• CA-19-9
• karsinoembriyojenik antijen
• kolorektal kanser

Kaynakça

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