Performance of radiologists in differentiating COVID-19 from viral pneumonia on chest CT. Radiology Published online March 10, 2020. Acute interstitial pneumonitis (AIP), also known as Hamman-Rich syndrome, is a rapidly progressive non-infectious interstitial lung disease of unknown etiology. Because of the clinical manifestations and the radiologic aspects, viral pneumonia was included in the broad category of atypical pneumonias. The CO-RADS classification uses features of COVID-19 on chest CT to indicate the likelihood of COVID-19 pulmonary involvement based on CT imaging (ref Prokop et al). Perihilar “ bat-wing ” consolidation shows central consolidation with sparing of the lung periphery (Figs. ... European journal of radiology. Approximately 60 to 70% of patients with sarcoidosis have characteristic radiologic findings. For instance a lobar pneumonia caused by streptococcus pneumoniae may become diffuse if the patient does not respond to the treatment. COVID-19 is a viral disease also known as SARS-CoV-2 or severe acute respiratory syndrome coronavirus 2. The diagnosis is made by a positive PCR test, which is highly specific. The HRCT appearance of pulmonary sarcoidosis varies greatly and is known to mimic many other diffuse infiltrative lung diseases. Google Scholar; 12. These patients were isolated and obtained treatment. Terminology. Other examples are organizing pneumonia (OP) and chronic eosinophilic pneumonia. These diseases typically present as multifocal consolidations, but sometimes they may become diffuse. Classically, "PCP" was the acronym for Pneumocystis carinii pneumonia, but the causative organism was reclassified as Pneumocystis jiroveci. OP is organizing pneumonia. There is a steep decline in the incidence of viral pneumonia from adolescence through the fifth or sixth decade of life. Pneumonia is the most common cause of death due to infectious diseases in the United States, with an incidence of 11.6/1000 persons/year reported … It is considered the only acute process among the idiopathic interstitial pneumonias. In this article we will describe the role of imaging. Physician Board Reviews Physician Assistant Board Reviews CME Free CME. Viral pneumonia occurs due to aggression of the viral pathogens on the lung structures. Chest CT can be helpful in the diagnosis of COVID-19 in hospitalized patients as an adjunct to PCR testing and serology. Student ... Age - Viral pneumonia is most common in the very young and in the elderly. Epidemiology. 2018 Oct [PubMed PMID: 30292266] Since December 2019, a cluster of cases with unknown pneumonia with similar clinical manifestations suggesting viral pneumonia appeared in Wuhan city, Hubei Province, China. CT has a higher sensitivity but lower specificity and can play a role in the diagnosis and treatment of the disease. 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