"Many patients for fear of covid-19 did not see a doctor despite the difficulties, or the difficulties were attributed to covid. Especially in bronchogenic carcinoma, its symptoms are non-specific - cough, shortness of breath, pressure or chest pain, pneumonia behind stenosis, ie similar to covid-19 infection ", says Leona Koubková, MD, guarantor of pneumocological focus of this issue of ACTA MEDICINAE.