“Ground glass opacity” sign in lung diseases: nuances of radiological diagnosis and correct interpretation

Abstract

“Ground glass opacity” (GGO) sign is one of the most common radiological symptoms of lung diseases that has become the focus of discussion by the general medical community during the pandemic of COVID-19. Non-specificity of GGO and the variety of diseases accompanied by this sign hinder the correct interpretation and differential diagnosis.The purpose of this review is to study the differential diagnostic features of GGO detected by multispiral computed tomography in various lung diseases.Conclusion. Knowledge of the features of GGO CT-pattern in various lung diseases significantly facilitates the interpretation of the imaging results and speeds up the differential diagnosis.