“…The pathology was divided into two categories: (1) tumours in the apex of lung (including primary tumour in apex of lung such as primary lung cancer, cervical spine tumour, laryngeal cancer, Hodgkin's disease, and pleural mesothelioma, among other things), and metastases from sites of origin such as stomach, pancreas, thyroid, breast, oesophagus, etc. ; (2) other non-malignant lesions such as benign tumour and injury, as well as non-specific and specific inflammations, such as tuberculosis, hydatid cysts [8] , etc. The trait of this disease that causes inflammation is being taken seriously by experts [7] ; however, the pathology of primary tumour in apical site still remains dominant [9] .…”