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The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
The fourth pattern ... - Lung cysts (LAM ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... Differential #Diagram #Comparison
Here are the most common examples of these four patterns on a chest x-ray (click image
of these four patterns ... on a chest x-ray ... mass - Solitary Pulmonary ... Masses Atelectasis #Diagnosis ... #Clinical #Radiology
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
Miliary Pattern ... - Chest Radiology ... #Chest #Radiology ... #pulmonary #CXR ... #clinical #CT
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
with a nodular pattern ... #Clinical #Diagnosis ... #Radiology #Pulmonary ... #CTChest #Nodular ... #Differential #Comparison
Sand Storm Sign on Chest CT
 • Diffusely dense pulmonary micronodular calcifications. Note the black pleural
CT • Diffusely ... dense pulmonary ... arrow) • DDx: PAM ... #diagnosis #radiology ... #clinical
Lobar atelectasis or lobar collaps is an important finding on a chest x-ray and has a
atelectasis or lobar collaps ... important finding on a chest ... x-ray and has a ... #Diagnosis #Radiology ... #Patterns #Comparison
Progressive Massive Fibrosis aka Complicated Silicosis.
Silicosis is a fibrotic lung disease caused by inhalation of crystalline
Calcification (seen in CT ... typical eggshell pattern ... Fibrosis #Silicosis #clinical ... #Chest #XRay #labeled ... #pulmonary
Tree-in-Bud Sign on Chest CT
 • Multiple centrilobular nodules arranged in a linear branching pattern.
 •
CT • Multiple ... linear branching pattern ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical #tree
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Clinical ... Leukocytosis, anemia ... CXR upright or lat ... CT Lung Abscess ... Lung #Abscess #pulmonary
Lymphangioleiomyomatosis- Computed tomography of the chest, reconstructed in the coronal plane at the level of the
intraparenchymal pulmonary ... in the late 30s ... #clinical #Lymphangioleiomyomatosis ... #LAM #radiology ... #CT #wedge #biopsy