Abstract
Slowly-resolving pneumonia is an important medical problem in spite of current knowledge on etiology, pathogenesis and therapeutic approaches. In Russia, uniform approach to this disease is lacking. Risk factors for the slowly-resolving pneumonia are comorbidity, age, severity of the disease and certain pathogens. A wide range of infections and non-infection diseases resemble slowly-resolving pneumonia, such as autoimmune systemic diseases, interstitial lung diseases, drug-induced lung toxicity, thoracic tumours, tuberculosis, etc. A diagnostic algorithm has been described in the article aimed at identification of the pathogen causing the pulmonary inflammation and at exclusion of diseases mimicking slowly-resolving pneumonia.