Abstract
Background/Aim: Pulmonary pleomorphic carcinoma (PPC) is rare, and few studies have reported its features. We assessed the clinicopathological features, surgical outcomes, oncogenic status and programmed death-ligand 1 (PD-L1) expression of PPC. Patients and Methods: We retrospectively reviewed data from 22 consecutive patients who underwent resection of PPC between 2007 and 2017. Results: The predominant tissue type of the epithelial component was adenocarcinoma in 15 patients (68%) and the others in 7 patients (32%), and the 3-year disease-free survival rate tended to be better in patients with an adenocarcinoma component compared to patients with another component (40.0% vs. 17.1%, p=0.059). PD-L1 expression was observed in all eight tumors whose PD-L1 status could be examined and high PDL1 expression (≥50%) was frequent (5/8, 63%). Conclusion: A predominant adenocarcinoma epithelial component in PPC might be associated with better survival outcomes and high PD-L1 expression might be frequent in PPC.
Original language | English |
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Pages (from-to) | 5789-5795 |
Number of pages | 7 |
Journal | Anticancer research |
Volume | 39 |
Issue number | 10 |
DOIs | |
Publication status | Published - 2019 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Oncology
- Cancer Research