title: Apical lung cancer masquerading as a Pancoast tumor.
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis*; D001707:Biopsy, Needle / Q000009:adverse effects; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged; D010178:Pancoast Syndrome / Q000175:diagnosis*; D011030:Pneumothorax / Q000209:etiology