16 results
Mosaic Attenuation on Chest CT
 • Variable attenuation seen on a chest CT in a lobular
CT • Variable ... CT in a lobular ... BO, CTEPH, PJP, CEP ... , HP, COP https ... #Lung #Pulmonary
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT ... Hypersensitivity Pneumonia, COP ... Sarcoidosis, NSIP, COP ... Honeycombing: Idiopathic Pulmonary ... #CT #Patterns #
Acute Respiratory Distress Syndrome – ARDS: Clinical Cheat Sheet

An acute diffuse, inflammatory lung injury, leading to
, inflammatory lung ... leading to increased pulmonary ... consistent with pulmonary ... be detected on CT ... or CXR ● PaO2/
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
• Labs: CBC, cr ... , C3, C4, anti-CCP ... • CXR (diffuse ... high resolution chest ... CT • Bronchoscopy
Atoll Sign (Reverse-Halo Sign) on Chest CT
 • Central GGO surrounded by a crescentic or circumferential
Reverse-Halo Sign) on Chest ... CT • Central GGO ... consolidation • DDx: COP ... Reverse #Halo #Sign #CT ... #Lung #Pulmonary
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
heart failure, COPD ... , Lung cancer, Primary ... Evaluation: Imaging (CXR ... +/- High res CT ... chest scan), CBC
It is very important to differentiate between acute consolidation and chronic consolidation, because it will limit
differentiate between acute ... - Lung neoplasms ... organizing pneumonia (OP ... Diagnosis #Radiology #Pulmonary ... #CXR #Consolidation
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
obstruction • COPD ... Physical stigmata of cor ... in the adjacent lung ... CT) • Broncho-arterial ... Laboratory: • ANA, RF, CCP
Based on the images alone, it is usually not possible to determine the cause of the
considered, like acute ... between these chest ... Organizing pneumonia (OP ... nodular interstitial lung ... Diagnosis #Radiology #CXR
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
necrosis (7-14 days later ... Blood cultures • CXR ... early disease) • CXR ... CT Lung Abscess ... #Abscess #pulmonary