Synchronous and Ipsilateral Double Primary Lung Cancer Presenting with Small-cell Neuroendocrine Carcinoma and Squamous-cell Carcinoma:A Case Report
Multiple primary lung cancer(MPLC)is a relatively rare type of lung cancer.It is even rarer that co-existing small cell lung cancer and non-small cell lung cancer in the same lung lobe.We reported a 63-year-old male without previous smoking history and family history of malignant tumors.Two nodules were found simultaneously in his left upper lung lobe.One nodule was characterized by lobulation,while the other was characterized by burrs,vacuoles,and pleural traction.Postoperative pathology revealed small-cell neuroendocrine carcinoma and squamous-cell carcinoma.His diagnosis was simultaneous ipsilateral double primary lung cancer(pT1bNOMO,stage IA2).We analyzed his CT features in order to raise awareness of MPLC among clinical doctors.