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Introduction: The organ-specific Danish cancer patient pathways (CPPs) including standard time frames were introduced in 2008-2009 securing fast tracks for cancer diagnosis and treatment. Previous studies of the CPPs have focussed on patients getting the suspected cancer diagnosis, whereas little is known about patients not getting the cancer diagnosis for which they were examined. We aimed to describe the characteristics of patients who completed a lung cancer CPP (LCPP) without getting a LC diagnosis. Furthermore, to assess the proportion of patients who had invasive procedures performed during the LCPP and radiographic examinations of the chest conducted 30 days prior to the LCPP and during the LCPP. Moreover, we aimed to describe the proportion of patients being diagnosed with any other cancer-type than LC or with non-malignant pulmonary diseases (NMPDs) during the LCPP. Methods: The study was a retrospective population-based cohort study based on Danish national registers. Patients completing a LCPP between 1 January 2013 and 31 December 2016 without being diagnosed with LC and who were registered as initiating and completing the LCPP, a total of 35,809, were included in the study. Results: Invasive procedures were performed in 12,986 patients (37.4%) and almost all patients had CT-scans of thorax and lungs conducted 30 days prior to or during the LCPP. During the LCPP other cancer-types than LC were diagnosed in 1,537 patients (4.3% of the study population), including other primary thoracic malignancies in 312 patients, while 6,826 patients (19.1%) were diagnosed with NMPDs, most often infections or chronic respiratory diseases of lower airways. Conclusion: Besides diagnosing LC the LCPP may contribute significantly in diagnosing other primary and secondary cancers as well as non-malignant diseases.

Asthma is one of the most common chronic diseases in children and adults. Cocaine is associated with asthma exacerbations. In Denmark, the prevalence of cocaine use has been increasing in recent years. This is a case report of a 47-year-old male with acute asthma exacerbation after cocaine use. Cocaine use is probably an underestimated reason for acute asthma exacerbations.

The anti-inflammatory effect of systemic corticosteroid (CS) on obstructive lung diseases and seasonal allergic rhinitis is well known. So are the physiological side-effects of CS. A major development in inhalation and biologic treatment as well as hyposensibilisation has taken place in recent years and evidence of personalized use of CS in acute exacerbations increases. We review the side effects of CS and the rationale for use of systemic CS in treatment of obstructive lung diseases as asthma and COPD, as well as seasonal allergic rhinitis.

Many resources have been spent to successfully improve the outcome and prognosis of lung cancer during the last decade. However, surprisingly few studies and real-life settings deal with smoking cessation as an integrated part of screening and treatment for lung cancer even though the evidence is compelling - these events offer a window of opportunity, as smokers are motivated to quit. Furthermore, the effect of smoking cessation with respect to survival, prognosis and quality of life equals the established treatment: surgery, chemotherapy and radiation.