Peculiarities of cytomorphological changes in neutrophil population during the development of differential and diagnostic criteria for atypical pneumonia

The article presents data on the relevance of differential diagnosis of acute respiratory diseases and pneumonia in military personnel. The results of studying the cytomorphological changes in the pool of neutrophils in the servicemen with acute respiratory infections (ARI) and atypical pneumonia (AP) were obtained during Anti-Terrorist Operation/Joint Forces Operation. These results showed the possibility of using cytomorphological changes of peripheral blood neutrophils as additional criteria for the differential diagnosis of AP and ARI in the first days of the disease. Moreover, only changes in the content of neutrophil pools, in particular for AP, can serve as additional diagnostic criteria in the differential diagnosis of AP and ARI, because in contrast to ARI, it is an increase in the relative content of hyposegmented neutrophils to 1/3 of the population or more. The obtained results can be used in the comprehensive development of additional criteria for the differential diagnosis of acute respiratory diseases and atypical pneumonia in the first days of the disease.