34 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
These include: - Emphysema ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... Differential #Diagram #Comparison ... TractionBronchiectasis #Cysts #Emphysema
Patterns of disease in advanced COPD

Type A: 
Pink Puffer (Emphysema Predominant) 
Major complaint is dyspnea, often
Pink Puffer (Emphysema ... Chest is very quiet ... exacerbations due to chest ... Chest is noisy, ... #BlueBloater #Pulmonary
Empyema Necessitans (EN) on Chest POCUS

Pulmonary teaching case: you are called to the bedside of a
(EN) on Chest POCUS ... Pulmonary teaching ... POCUS - What’s the diagnosis ... erodes into the chest ... fluid into the chest
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 ... Bilateral Peripheral ... Patterns #Lung #Pulmonary ... ChestCT #radiology #CTChest ... #diagnosis
Empyema Necessitans (EN) on Chest Wall Physical Examination

Pulmonary teaching case: you are called to the bedside
(EN) on Chest Wall ... coughed and now his chest ... drain - What’s the diagnosis ... erodes into the chest ... fluid into the chest
Causes of Hypoxemia- Differential Diagnosis Algorithm
Ventilation/perfusion Mismatch
 • Airway Disease (Asthma, COPD)
 • Vascular (PE*)
 •
- Differential Diagnosis ... lung disease • Pulmonary ... Hypothyroidism Peripheral ... Abnormalities • Chest ... #Differential #Diagnosis
Eosinophilic Pneumonia
When to suspect Eosinophilic Pneumonia? Non-resolving pneumonia + BAL > 25% eosinophils + excluded more
excluded more common diagnoses ... Dyspnea+, Pleuritic Chest ... Consolidations AKA "inverse pulmonary ... Eosinophilic #Pneumonia #diagnosis ... #pulmonary
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
Hematuria, Hemoptysis, Peripheral ... Differential Diagnosis ... polyangiitis, Microscopic ... high resolution chest ... #differential #diagnosis
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT ... - Differential Diagnosis ... Attenuation: • Emphysema ... HiRes #HighRes #Chest ... #pulmonary #radiology
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
polyangiitis), MPA (microscopic ... Other tests: • CT chest ... sparing of the lung periphery ... typically seen on chest ... FINDINGS: • U/A: microscopic