Chest
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Observational Study
Hospital-treated infectious diseases, infection burden and risk of lung cancer: an observational and Mendelian randomisation study.
Although infections play a role in the development of lung cancer, the longitudinal association between infection and the risk of lung cancer is disputed, and data relating to pathogen types and infection sites are sparse. ⋯ Both observational and genetic analyses suggest that infectious diseases could increase the risk of lung cancer. The dual perspective on the LRTIs and extra-LRTIs impacts may inform lung cancer prevention strategies.
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A 34-year-old man who did not use tobacco complained of hemoptysis with a small volume, severe dry cough, and low-grade fever for 5 months. He denied dyspnea, chest pain, night sweats, or weight loss. Chest CT scanning showed nodules with a cavity in the lower left lung. ⋯ He was prone to spontaneous bruising since childhood with a family history of spontaneous cerebral aneurysm. At 21 years of age, the patient underwent an appendectomy because of a suspected perforation. Also, he experienced cerebral hemorrhage 3 years earlier.