This case involves a middle-aged man who had a delayed diagnosis of spindle cell carcinoma of the lung. Prior to his diagnoses, the patient had a long and detailed history of asthma, which was being managed by his primary care doctor with standard medications. During this time period, the physician stated that the patient had no symptoms of shortness of breath nor wheezing, and pulmonary function tests were never performed in office. The patient indicated to his primary care doctor that he was in fact having shortness of breath upon minimal exertion. His primary care doctor reassured him to take his asthma medications, and that no additional follow up was warranted. Several months later he was referred to a cardiologist due to an abnormal EKG. The patient continued to complain of shortness of breath to his primary care doctor. Eventually, a CT scan revealed lung nodules consistent with lung cancer.