Clinicopathological features, surgical outcomes, oncogenic status and PD-L1 expression of pulmonary pleomorphic carcinoma

Keita Nakanishi, Noriaki Sakakura, Takuya Matsui, Harushi Ueno, Takeo Nakada, Yuko Oya, Junichi Shimizu, Toyoaki Hida, Waki Hosoda, Hiroaki Kuroda

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

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 languageEnglish
Pages (from-to)5789-5795
Number of pages7
JournalAnticancer research
Volume39
Issue number10
DOIs
Publication statusPublished - 2019
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Oncology
  • Cancer Research

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