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Updated: Jul 4, 2026

Lung CT Segmentation to Identify Consolidations and Ground Glass Areas for Quantitative Assesment of SARS-CoV Pneumonia
Published on: December 19, 2020
[Cryptogenic organizing pneumonia: typical and atypical imaging features on computed tomography]
O W Hamer1, C I Silva, N L Müller
1Institut für Röntgendiagnostik, Klinikum der Universität Regensburg, Franz-Josef-Strauss-Allee 11, Regensburg. o.hamer@gmx.de
Abstract:
Organizing pneumonia (OP) occurs without any identifiable cause ("cryptogenic organizing pneumonia") as well as secondary to a multitude of disorders of various origins ("secondary organizing pneumonia"). Possible triggers are infections, drugs, collagen vascular disease, inflammatory bowel disease, transplantations, and radiation directed to the chest. The present manuscript provides an overview of the histopathological, clinical and CT imaging features of OP. Classic CT morphologies (peripheral and peribronchovascular consolidations and ground glass opacities) and atypical imaging features (nodules, crazy paving, lines and bands, perilobular consolidations and the reversed halo sign) are discussed.
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