9 results
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
of Lung Findings ... on Chest CT 1. ... #Lung #Pulmonary ... #ChestCT #radiology ... #CTChest #diagnosis
Halo Sign on Chest CT
 • SPN or mass surrounded by a circumferential GGO
 • DDx:
Halo Sign on Chest ... CT • SPN or mass ... #Sign #CT #Lung ... #Pulmonary #diagnosis ... #radiology #clinical
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
Miliary Pattern ... throughout the lungs ... Differential Diagnosis ... #pulmonary #CXR ... #clinical #CT
Atoll Sign (Reverse-Halo Sign) on Chest CT
 • Central GGO surrounded by a crescentic or circumferential
Sign (Reverse-Halo ... Sign) on Chest CT ... #Sign #CT #Lung ... #Pulmonary #diagnosis ... #radiology #clinical
Progressive Massive Fibrosis aka Complicated Silicosis.
Silicosis is a fibrotic lung disease caused by inhalation of crystalline
is a fibrotic lung ... Calcification (seen in CT ... typical eggshell pattern ... #radiology #CXR ... XRay #labeled #pulmonary
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
of pulmonary fibrosis ... particularly at the lung ... to confirm the diagnosis ... at the lung bases ... #Clinical #Radiology
Tree-in-Bud Sign on Chest CT
 • Multiple centrilobular nodules arranged in a linear branching pattern.
 •
Sign on Chest CT ... linear branching pattern ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical #tree
Fleischner Society recommendations for follow-up of nodules
Previous chest radiographs should be reviewed to determine if the
with a benign pattern ... mm depends on clinical ... Intermediate probability: PET-CT ... definitive tissue diagnosis ... Society #Followup #Pulmonary
Authors: Mark M. Ramzy, DO, EMT-P (@MarkRamzyDO, EM Resident Physician, Drexel University, Department of Emergency Medicine)
This patient’s clinical ... a chest x-ray (CXR ... chest radiograph pattern ... not seen on a CXR ... #Lung #Pulmonary