Mobile lung cancer with space-occupying lesion and without adhesion between lung lobes is easy to be misdiagnosed and missed: A case report

Yiqi Liu^1#, Haoling Wang^1#, Dongqiong Li¹, Yan Lai¹, Guozhou Lu², Chong Li³, Fanglan Ma⁴, Xingyou Chen⁵, Xu Wu¹, Duo Li^6*

¹Department of respiratory and critical care medicine, Xichang people's Hospital, Sichuan Province, China-615000 - ²Department of Pharmacy, Xichang people's Hospital, Sichuan Province, China-615000 - ³Department of Imaging, Xichang people's Hospital, Sichuan Province, China-615000 - ⁴Department of Nephrology, Xichang people's Hospital, Sichuan Province, China-615000 - ⁵Department of Pathology, Xichang people's Hospital, Sichuan Province, China-615000 - ⁶Department of respiratory and critical care medicine, Affiliated Hospital of Southwest Medical University, Sichuan Province, China-646000

^#Yiqi Liu and Haoling Wang are the co-first author

In general, malignant tumors are characterized by adhesion, unclear boundary, fixation and solid components. Here we reported a case of mobile lung cancer with no adhesion between lung lobes. The clinical manifestation was special because the space-occupying lesion was in the middle lobe of the right lung and could change with posture. This case suggests that pathological examination can improve the diagnosis rate of mobile lung cancer with pulmonary space-occupying lesions and avoid misdiagnosis.