Table 2.

Molecular marker expression in adenoid cystic carcinoma, salivary duct carcinoma, and mucoepidermoid carcinoma

H-score	Adenoid cystic carcinoma (N=15)		Salivary duct carcinoma (N=11)		Mucoepidermoid carcinoma (N=27)
PD-L1
<1	11	73.3	6	54.5	20	74.1
≥1	4	26.7	5	45.5	7	25.9
PD-L2
<1	2	13.3	4	36.4	10	37
≥1	13	86.7	7	63.6	17	63
CTLA-4
<1	4	26.7	2	18.2	7	25.9
≥1	11	73.3	9	81.8	20	74.1
PD-1
<1	12	80	3	27.3	5	18.5
≥1	3	20	8	72.7	22	81.5
CD8+ TILs
<1	9	60	2	18.2	2	7.4
≥1	6	40	9	81.8	25	92.6

Note: H-score, percentage of positive cells multiplied by intensity.

Abbreviations: H-score, Histoscore; TILs, tumor-infiltrating lymphocytes.