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. 2021 Oct 14;55(6):388–397. doi: 10.4132/jptm.2021.08.04

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© 2021 The Korean Society of Pathologists/The Korean Society for Cytopathology

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (https://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Fig. 1 — Glioblastoma sections stained for CD8 and programmed death-ligand 1 (PD-L1). CD8⁺ tumor-infiltrating lymphocytes (TIL) membranous/cytoplasmic staining in the high infiltration group (A) and low infiltration group (B). CD8⁺ TIL membranous/cytoplasmic staining showing a perivascular distribution (C) and an intra-tumoral distribution (D). PD-L1⁺ tumor cells showing a diffuse/fibrillary pattern (E) and diffuse/fibrillary and membranous patterns (F).