Pathological complete response to neoadjuvant alectinib in unresectable anaplastic lymphoma kinase positive non-small cell lung cancer: A case report

Figure 1 Computed tomography images of lungs in different treatment stages. A: Baseline computed tomography scan performed in August 2019 shows primary lesion in the upper lobe of left lung near the hilum with mediastinal lymph node metastases; B: 10 wk after initiation of alectinib treatment (November 2019); C: Sustained response to disease is observed in June 2020; D: 14 mo after initiation of alectinib treatment (November 2020). The tumor lesions are indicated by yellow arrow.