. 2021 Feb;9(4):357. doi: 10.21037/atm-20-8141

Table 2. Overview of P16, PD-1, PD-L1 expressions and BRAF^V600E mutation of PLCH.

Case	Isolated pulmonary group			Extrapulmonary recidivism group
Case	1	2	3	4	5	6
P16	+	+	−	+	+	+
PD-1	5%	20%	10%	−	10%	10%
PD-L1	−	−	5%	−	5%	−
BRAF^V600E mutation	−	−	−	−	−	+

PD-1, programmed cell death 1; PD-L1, programmed cell death-ligand 1; PLCH, pulmonary Langerhans cell histiocytosis.

Table 2. Overview of P16, PD-1, PD-L1 expressions and BRAFV600E mutation of PLCH.