Discussion
Immunocompromised patients, especially those receiving cytotoxic chemotherapy are at higher risk for developing Legionella pneumonia (10). Our case showed that delay in diagnosis verification led to worsened patient’s condition due to respiratory failure. Only after pathogen verification in the urine, appropriate therapy was prescribed. We believe that in the treatment of patients with immunodeficiency and signs of pneumonia, it is imperative to actively use the available methods of express diagnosis of Legionella pneumophila. That can reduce the mortality rate to 0-5.5%. This case shows that the diagnosis is very important, but also with an unusual clinical manifestation of pneumonia, legionella should be considered in the differential diagnosis in immunocompromised patients.