Onboard aircraft medical emergencies are on the rise as commercial air traffic is increasing. However, thoracic injury secondary to air travel is extremely rare and, most reported injuries are cases of pneumothoraces. Spontaneous pneumomediastinum and pneumopericardium have been barely reported in the medical literature as a complication of air travel. We are reporting a case of spontaneous pneumopericardium and pneumomediastinum in a patient with Gardner's Syndrome after a flight from Central America to New York City. The patient presented with chest discomfort. He was managed conservatively with oxygen therapy as he was hemodynamically stable throughout his stay in the hospital. A thorough work up in hospital including and esophagogram and a CT scan of the chest were none revealing of the cause. However, the patient was noted to have metastatic rectal cancer with lung involvement. The patient was discharged with instructions to avoid air travel.Differentiating multiple primary lung cancer (MPLC) from lung metastasis is important, and the pathology and gene mutations may be different between the tumors. A lung biopsy to differentiate lesions should be considered, especially when the response of different tumors to treatment is distinct. Chickenpox is a common viral infection caused by Varicella-zoster virus (VZV). Pneumonia is an infrequent complication of chickenpox infection. Rarely, multiple calcified pulmonary nodules can be the sequela of healed VZV pneumonia. A middle-aged female individual was found to have diffuse incidental pulmonary micronodules. By further history inquiry and diagnosis of exclusion, her pulmonary micronodules were determined to be likely associated with prior VZV infection. VZV infection can cause calcified pulmonary nodules related to granuloma, and gold standard diagnosis is surgical lung biopsy with VZV PCR. However, diagnosis of exclusion is a reasonable approach to reach a presumptive diagnosis. Familiarity with this entity can potentially avoid invasive procedures in selected patients. VZV infection can cause calcified pulmonary nodules related to granuloma, and gold standard diagnosis is surgical lung biopsy with VZV PCR. However, diagnosis of exclusion is a reasonable approach to reach a presumptive diagnosis. Familiarity with this entity can potentially avoid invasive procedures in selected patients. Diffuse alveolar hemorrhage is a medical emergency caused by persistent and recurrent pulmonary hemorrhage [1]. It is an uncommon presentation of polymyositis. Symptoms of polymyositis include fatigue, muscle pains, proximal muscle weakness, and joint pains [2]. A 44-year-old male presented with new onset shortness of breath and productive cough with white sputum and occasional hemoptysis. The patient was diagnosed with diffuse alveolar hemorrhage (DAH) via bronchoscopy and discharged initially on prednisone. The patient's laboratory work indicated positive titers of ANA & anti-Jo-1 antibody with low complement levels. These results pointed towards the diagnosis of polymyositis [3]. DAH can also be caused by systemic lupus erythematosus, Goodpasture's syndrome, Sjogren syndrome, anticoagulant therapy, and antiphospholipid antibody syndrome [4]. However, the possibility of these potential causes was excluded. This case of diffuse alveolar hemorrhage was most likely due to polymyositis. This case of diffuse alveolar hemorrhage was most likely due to polymyositis.Nowadays we have novel therapies for advanced stage non-small cell lung cancer. Immunotherapy has been introduced in the market for several years and until now its administration is mostly based on the programmed death-ligand 1. First line treatment with immunotherapy can be administered alone if programmed death-ligand 1 expression is ≥ 50%. All therapies for advanced stage disease have advantages and disadvantages, immunotherapy until now has presented mild adverse effects when compared to chemotherapy. However; it is known to induce inflammatory response to different tissues within the body. In our case acute pneumothorax was induced after immunotherapy administration.We present a case where we evaluated the effectiveness of nebulized fentanyl in the treatment of refractive dyspnea in a patient with chronic obstructive pulmonary disease (COPD) with major complications and comorbidities. Nebulized fentanyl was used to successfully decrease the subjective symptoms of refractory dyspnea in this given patient. Nebulized fentanyl appears to be a cost-effective treatment option in patients that experience episodes of severe shortness of breath (SOB). To evaluate the cumulative estimates of reliability and conduct reliability generalization meta-analysis of Cronbach's alpha for the Child Oral Impacts on Daily Performances (C-OIDP) questionnaire. Systematic search of four databases from inception to November 30th, 2019 was performed. Studies that reported Cronbach alpha for the C-OIDP were included. Cronbach's alpha for each publication was used for the meta-analysis. I and Q statistics were calculated to assess heterogeneity. https://www.selleckchem.com/products/pyrvinium.html Meta-analysis was performed using a random-effects model to derive a pooled estimate of Cronbach's alpha. Out of 944 publications, data extraction was done from 33 publications after exclusion. The age range among the included publication was from 6 to 19 years. Cronbach's alpha ranged from 0.53 to 0.9. Majority of the publications (n=21) reported alpha above the benchmark (0.7 and above). Only two publications used condition-specific C-OIDP questionnaires. Twelve publications used self-administered child-OIDP questionnaires. Most of the studies were at a low risk of bias (n=29). The cumulative alpha was higher in publications with a low ROB (α=0.74) than a moderate ROB (α=0.65) The cumulative alpha was 0.73 (SE=0.02) with a high heterogeneity among the included publications (I =99.28% and Q=2048.68; P<0.001). Overall, the RG estimate of Cronbach's alpha for C-OIDP was above the widely accepted benchmark. Overall, the RG estimate of Cronbach's alpha for C-OIDP was above the widely accepted benchmark.