23 results
Halo Sign on Chest CT
 • SPN or mass surrounded by a circumferential GGO
 • DDx:
circumferential GGO ... sarcoidosis, mets to the lung ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
On the left a patient with ground glass pattern in a mosaic distribution.
The clue here is
enlargement of pulmonary ... caliber due to chronic ... thromboembolic disease ... #Clinical #Radiology ... #CTChest #GGO #
Mosaic Attenuation on Chest CT
 • Variable attenuation seen on a chest CT in a lobular
Mosaic Attenuation ... on Chest CT • ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
On the left another patient with ground glass pattern in a mosaic distribution.
Again the ground glass
hyperperfused lung ... adjacent to oligemic lung ... thromboembolic disease ... #Clinical #Radiology ... #CTChest #GGO #
Mosaic attenuation
The term 'mosaic attenuation' is used to describe density differences between affected and non-affected lung
Mosaic attenuation ... due to chronic ... thromboembolic disease ... #Diagnosis #Radiology ... #Pulmonary #CTChest
Incidental Finding of Oleothorax - A chest radiograph showed a dense opacity in the upper area
Oleothorax - A chest ... area of the left lung ... treatment for pulmonary ... #Clinical #PCC # ... CXR #Oleothorax #NEJM
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... pneumonia • Chronic ... Lung Abscess - Clinical ... CT Lung Abscess ... #Abscess #pulmonary
Atoll Sign (Reverse-Halo Sign) on Chest CT
 • Central GGO surrounded by a crescentic or circumferential
CT • Central GGO ... Reverse #Halo #Sign #CT ... #Lung #Pulmonary ... #diagnosis #radiology ... #clinical
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
, in advanced disease ... in the adjacent lung ... hypertension • Mosaic ... of the affected lung ... CT) • Broncho-arterial
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
lung disease ... Disease: Clinical ... Lung Disease: ... • Clinical (Symptoms ... Imaging, high res CT