18 results
Reversed Halo Sign - Infectious and Non-Infectious Differential Diagnosis
Definition: A focal rounded area of GGO surrounded
Reversed Halo Sign ... focal rounded area ... surrounded by a ... complete ring of consolidation ... Dermatomyositis, Lung
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
Findings on Chest ... CT 1. ... Reverse Halo Sign ... Consolidation 7. ... #Pulmonary #ChestCT
Atoll Sign (Reverse-Halo Sign) on Chest CT
 • Central GGO surrounded by a crescentic or circumferential
Atoll Sign (Reverse-Halo ... Sign) on Chest ... surrounded by a ... #Halo #Sign #CT ... #Lung #Pulmonary
Stage I - Redistribution
In a normal chest film with the patient standing erect, the pulmonary vessels
reserve capacity ... non-perfused vessels and causes ... period of CHF (right ... #Clinical #Radiology ... #CXR #CHF #Cephalization
Air Crescent Sign on Chest CT
 • Crescentic or circumferential rim of radiolucent airspace within a
on Chest CT • ... airspace within a ... parenchymal consolidation ... #CT #Lung #Pulmonary ... #diagnosis #radiology
Lung infarction
In pulmonar embolism it is not common to see consolidation.
The consolidation is a result of
Lung infarction ... In this case a lung ... has caused a triangular ... On the CT we can ... #Clinical #Radiology
Hampton hump is a radiologic sign which consists of a shallow wedge-shaped opacity in the periphery
radiologic sign ... periphery of the lung ... In this case, pulmonary ... confirmed with chest ... CT angiography.
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Most Common Causes ... Nasal polyps and signs ... centrilobular nodules, or consolidation ... CT) • Broncho-arterial ... Immunoglobulins (Ig M, A,
Progressive Massive Fibrosis aka Complicated Silicosis.
Silicosis is a fibrotic lung disease caused by inhalation of crystalline
lung disease caused ... Calcification (seen in CT ... Silicosis #clinical #radiology ... #CXR #Chest #XRay ... #labeled #pulmonary
Figure of 3 Sign - Coarctation of the Aorta on Chest X-Ray

The figure of 3 sign
of 3 sign refers ... There’s a focal ... Roesler sign refers ... #XRay #clinical ... #radiology #pediatrics