Table 3.

Adverse events possibly related to pembrolizumab

Event	Grade 1	Grade 2	Grade 3	Total n = 7(%)
Pneumonitis	0	0	2	2 (28.6%)
Diarrhea	1	0	0	1 (14.3%)
Pyrexia	1	0	0	1 (14.3%)
Anemia	1	1	0	2 (28. 6%)
Neutropenia	1	1	0	2 (28. 6%)
Thrombocytopenia	1	0	1	2 (28. 6%)
Increased ALT	0	1	0	1 (14.3%)
Increased AST	2	0	0	2 (28. 6%)

Adverse events we encountered during the course of pembrolizumab treatment. Most adverse reactions belong to grade I to grade II. Two cases suffered from pneumonitis and one case developed thrombocytopenia

ALT, alanine aminotransferase; AST, aspartate aminotransferase