10 results
Halo Sign on Chest CT
 • SPN or mass surrounded by a circumferential GGO
 • DDx:
Sign on Chest CT ... circumferential GGO ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
On the left a patient with ground glass pattern in a mosaic distribution.
The clue here is
with ground glass pattern ... enlargement of pulmonary ... hyperperfused lung ... #Clinical #Radiology ... #CTChest #GGO #
Mosaic Attenuation on Chest CT
 • Variable attenuation seen on a chest CT in a lobular
Mosaic Attenuation ... .2016.12.033 #Mosaic ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
On the left another patient with ground glass pattern in a mosaic distribution.
Again the ground glass
with ground glass pattern ... in a mosaic distribution ... hyperperfused lung ... #Clinical #Radiology ... #CTChest #GGO #
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) on Chest CT ... • Central GGO ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
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
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 ... Fibrosis #Silicosis #clinical ... XRay #labeled #pulmonary
It can be difficult to distinguish these three entities.
There are two diagnostic hints for further differentiation:
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right with the pulmonary ... penicillamine) #Clinical ... #Radiology #CTChest ... MosaicAttenuation #Mosaic ... #Attenuation #Comparison
Authors: Mark M. Ramzy, DO, EMT-P (@MarkRamzyDO, EM Resident Physician, Drexel University, Department of Emergency Medicine)
assaulted three days ago ... This patient’s clinical ... exam findings and clinical ... chest radiograph pattern ... #Lung #Pulmonary