Abstract
Purpose: Describe histopathological characteristics of some common types of non - small cell lung cancer. Determine the expression of PD-L1 in patients with non small cell lung cancer and its relationship with histopathological type, some other factors Methods: 310 patients with non - small cell lung cancer underwent lung tumor biopsy or surgery at the Center for Pathology and Molecular Biology of K Hospital, from the beginning of January 2019 to May 2020, immunohistochemical staining with PD-L1 antibody line Dako PD-L1 IHC 22C3 pharmDx assay.
Results: Adenocarcinoma accounted for the highest rate of 76.5%; squamous cell carcinoma (12.0%). Other histological types account for a very low percentage. Among the adenocarcinoma group, the unclassified adenocarcinoma accounted for the highest rate at 34.6%, the follicular and solid types (24.5% and 23.2%). The rate of PD-L1 positive was 65.8%: low positive was 39.0%, high positive was 26.8%. Adenocarcinoma has a negative, low positive, high positive rate of 35.4%; 38.4%; 26.2%. In squamous cell carcinoma, the rate of negative, low positive, high positive is 37.8%; 45.9%; 16.3%. In the group of high-grade adenocarcinoma, the higher the PD-L1 positive rate. In the squamous cell carcinoma group, the PD-L1-positive non - keratinizing squamous cell carcinoma group was higher than the squamous cell carcinoma group. There was no relationship of PD-L1 ratio with age, sex.
Conclusion: Histopathology of adenocarcinoma, squamous cell carcinoma was the most common. Non - small cell lung cancer has high positive with PD-L1. There was no relationship between the ratio of PD-L1 and age and sex, related to histological grade of adenocarcinoma and subtype of squamous carcinoma.
Keywords: Non - small cell lung cancer, adenocarcinoma, squamous cell carcinoma, PD-L1
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Published | 09-01-2025 | |
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Issue | No. 85 (2023) | |
Section | Original article | |
DOI | 10.38103/jcmhch.85.6 | |
Keywords | Từ khóa: Ung thư phổi không tế bào nhỏ, ung thư biểu mô tuyến, ung thư biểu mô vảy, PD-L1 Keywords: Non - small cell lung cancer, adenocarcinoma, squamous cell carcinoma, PD-L1 |

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