20 results
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
, cavities • HRCT ... Organizing Pneumonia - Diagnosis ... #BOOP #pulmonary ... #ILD #diagnosis ... #management
Central distribution is seen in sarcoidosis and cardiogenic pulmonary edema.
Peripheral distribution is mainly seen in cryptogenic
and cardiogenic pulmonary ... organizing pneumonia (COP ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #Differential #Table
Approach to the diagnosis of chronic hypersensitivity pneumonitis. 
*Consider additional test: bronchoscopy with bronchoalveolar lavage, transbronchial
Approach to the diagnosis ... cHP = chronic hypersensitivity ... pneumonitis; HRCT ... tomography; UIP = usual interstitial ... #pneumonitis #pulmonary
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... lung disease comes ... low attenuation (table ... #Diagnosis #Radiology ... #Pulmonary #CXR
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
listed in the table ... morphologic findings on HRCT ... of NSIP, UIP, OP ... #Diagnosis #Radiology ... #Pulmonary #CTChest
Multifocal Atrial Tachycardia (MAT)
• At least 3 different P wave morphologies: 
• Rate 100-180
• Irregular 
Etiology
Secondary to chronic lung ... disease (COPD) ... • Hypoxia • Pulmonary ... Tachycardia #MAT #Cardiology ... #Diagnosis #ECG
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Upper lung zone ... edema #Diagnosis ... #Radiology #Pulmonary ... #HRCT #ChestCT ... #Differential #Table
Connective tissue disease-associated interstitial lung diseases

LIP: lymphoid interstitial pneumonia. NSIP: nonspecific interstitial pneumonia. OP: organizing pneumonia.
lung diseases ... OP: organizing pneumonia ... LungDisease #CTILD #Diagnosis ... Differential #Comparison #Table ... #Pulmonary #Rheumatology
More than 100 entities manifest as diffuse lung disease.
Fortunately only about 10 of these account for
also uncommon HRCT-presentations ... you find three different ... #Diagnosis #Radiology ... #Pulmonary #SHITFACED ... #Mnemonic #HRCT
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
Thickening of the interstitium ... resolution of the HRCT ... lung disease (i.e ... bronchiolitis #Diagnosis ... #Radiology #Pulmonary