Parry Arshed H, Wani Haseeb A, Choh Naseer A, Shah Naveed N, Jehangir Majid
Department of Radiodiagnosis, Sher-i-Kashmir Institute of Medical Sciences, Srinagar, Jammu and Kashmir, India.
Department of Radiodiagnosis, Government Medical College, Srinagar, Jammu and Kashmir, India.
Indian J Radiol Imaging. 2021 Jan;31(Suppl 1):S170-S177. doi: 10.4103/ijri.IJRI_303_20. Epub 2021 Jan 23.
Coronavirus disease (COVID-19) is an infectious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which is an enveloped single-stranded RNA virus belonging to the family of betacoronaviruses. Chest computed tomography (CT) has helped us in understanding this new disease. Typical CT features of COVID-19 pneumonia are ground-glass opacities (GGO), crazy paving pattern and GGO with superimposed consolidation with a basal, posterior and peripheral lung predilection. Less commonly bronchial wall thickening, bronchial dilatation and pleural thickening are seen. Presence of pleural effusion, pericardial effusion and mediastinal lymphadenopathy is seen in severe cases. Reticulations, fibrous stripes, reverse halo sign and perilobular opacities are seen late (>2 weeks) in the course of illness. We aim to present a pictorial review of CT imaging findings in COVID-19 to illustrate the typical and atypical manifestations of this disease in a bid to familiarize radiologists with the myriad imaging manifestations of this disease.
冠状病毒病（COVID-19）是一种由严重急性呼吸综合征冠状病毒2（SARS-CoV-2）引起的传染病，SARS-CoV-2是一种包膜单链RNA病毒，属于β冠状病毒科。胸部计算机断层扫描（CT）有助于我们了解这种新疾病。COVID-19肺炎的典型CT特征是磨玻璃影（GGO）、铺路石样改变以及伴有实变的GGO，以肺底部、后部和周边部为主。较少见的表现有支气管壁增厚、支气管扩张和胸膜增厚。重症病例可见胸腔积液、心包积液和纵隔淋巴结肿大。在病程后期（>2周）可见网状影、纤维条索影、反晕征和小叶周围模糊影。我们旨在对COVID-19的CT影像表现进行图文综述，以说明该疾病的典型和非典型表现，从而使放射科医生熟悉该疾病的众多影像表现。
