Hamman-Rich syndrome or idiopathic pulmonary fibrosis is a disease of uncertain origin, accompanied by diffuse damage to the lung tissue, with the possible development of respiratory failure and, as a result, death. Its clinical manifestations are coughing and increasing shortness of breath, and «Velcro» rales can also be heard. The disease is usually found among the elderly. The disease greatly reduces quality of life of patients, so it is important to diagnose it in time and draw up the necessary treatment strategy.