15 results
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
Lung Findings on Chest ... ARDS 3. ... Organizing Pneumonia ... Patterns #Lung #Pulmonary ... ChestCT #radiology #CTChest
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
Pulmonary Infections ... in HIV-AIDS Bacterial ... heart failure, COPD ... Evaluation: Imaging (CXR ... /- High res CT chest
Crazy Paving is a combination of ground glass opacity with superimposed septal thickening (5).
It was first
proteinosis, but later ... Sarcoid - NSIP - Organizing ... pneumonia (COP/ ... BOOP) - Infection ... Clinical #Radiology #CTChest
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 ... HiRes #HighRes #Chest
Differential diagnosis of the reversed halo sign (RHS). AIA, angioinvasive aspergillosis; AIS, adenocarcinoma in situ; COP,
reversed halo sign ... aspergillosis; AIS ... adenocarcinoma in situ; COP ... interstitial pneumonia; OP ... hypersensitivity pneumonitis, infection
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
allopurinol), Infection ... , C3, C4, anti-CCP ... • CXR (diffuse ... high resolution chest ... DAH, rule out infection
It is very important to differentiate between acute consolidation and chronic consolidation, because it will limit
- Chronic post-infection ... diseases like organizing ... pneumonia (OP) ... Diagnosis #Radiology #Pulmonary ... #CXR #Consolidation
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) - multiple ... Diagnosis #Radiology #CXR
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Loss of weight • Chest ... Nasal polyps and signs ... Physical stigmata of cor ... high-resolution chest ... Laboratory: • ANA, RF, CCP
Amiodarone Induced Lung Toxicity Summary

Who?
• 5% of patients
• Dose ≥ 400 mg per day

How?  Possible
pneumonia, ARDS ... toxicity (e.g., acute ... Pleuritic chest ... failure - Infectious ... reticular opacities on chest