[P6] Poster Session 6　Rare Cancer/Cancer of Unknown Primary（Case Report 1）

[P6-10] Favorable response to anti-PD1 checkpoint blockade in a case of thoracic SMARCA4-deficient undifferentiated tumor

^○Yoko Nagata¹, Tohru Tsujimura², Michiko Yuki², Ikuo Matsuda³, Seiichi Hirota³, Takashi Kijima^1,4 (1.Department of Oncology Center, Hyogo College of Medicine, 2.Division of Molecular Pathology, Department of Pathology, 3.Department of Surgical Pathology, 4.Department of Respiratory Medicine and Hematology)