Significant benefits of pembrolizumab in treating refractory advanced pulmonary sarcomatoid carcinoma: A case report

Figure 1 Imaging examinations. A: Primary cancer in the apical segment of the upper lobe of the right lung before surgery in the lung window (yellow arrow); B: Primary cancer in the apical segment of the upper lobe of the right lung before surgery in the mediastinal window (orange arrow); C: No bone metastasis existed before surgery at baseline; D: right lung metastasis 1 mo after surgery (orange arrow); E: left lung metastasis 1 mo after surgery (orange arrow); F: Bone metastases 1 mo after surgery (orange arrow); G: Adrenal gland metastases 1 mo after surgery (orange arrow).