Investigation of perfusion defects by Q-SPECT/CT in patients with mild-to-moderate course of COVID-19 and low clinical probability for pulmonary embolism.

Objective: Pulmonary embolism is a severe source of mortality and morbidity in patients with severe and critical coronavirus disease 2019. It is not yet clear whether the tendency to thrombosis is increased in the mild-to-moderate course of COVID-19. Our research aims to show the clinical benefit of Q-SPECT/CT in diagnosing PD in outpatients treated with mild-to-moderate course of COVID-19 and to determine the frequency of perfusion defects in these patients having relatively lower risk.

Follicular lymphoma generating in a patient with non-small cell lung cancer following nivolumab discontinuation.

Introduction: Immune checkpoint inhibitors have demonstrated the benefit for many cancer types, melanoma, non-small cell lung cancer, urothelial cancer, renal cell cancer, etc. Especially in advanced non-small cell lung cancer, significant improvement in survival results has been shown.

Case Report: Here, we report a 66-year-old man with lung adenocarcinoma who received nivolumab for 80 cycles.