05 February 2021
: Case report 
Intermittent High-Frequency Percussive Ventilation Therapy in 3 Patients with Severe COVID-19 Pneumonia
Unusual clinical course, Challenging differential diagnosis, Unusual or unexpected effect of treatment
Sergey P. Marchenko1BEF*, Ecaterina Scarlatescu2ABEF, Paul Robert Vogt3AEFG, Alexey Naumov1ABDEF, Sergey Bognenko1ABCDEFDOI: 10.12659/AJCR.928421
Am J Case Rep 2021; 22:e928421
Figure 2. Case 1 lung CT images. (A) Initial CT scan, DOD (days from disease onset) 16, showing bilateral GGO (ground-glass opacities) in all lobes with rounded and linear morphology (arrows). (B) Followup CT scan, DOD 21, showing the development of GGO with a crazy-paving pattern and of bilateral consolidative opacities with vacuolar signs, with peripheral and central distribution (arrows). (C) Followup CT scan, DOD 27, showing consolidation areas and GGO sharply decreased after intervention (arrows). DOD – days from disease onset; GGO – ground-glass opacities.