12 results
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT ... Patterns - Differential ... Hypersensitivity Pneumonitis, Respiratory ... #Patterns #Differential ... #Diagnosis #pulmonary
Abnormalities in Rate and Rhythm of Breathing 
Normal 
The respiratory rate is about 14—20 per min
may show this pattern ... bronchitis, and COPD ... #Breathing #Patterns ... #Pulmonary #Abnormalities ... #Abnormal #Diagnosis
Tachypnea - Differential Diagnosis Framework

Definitions
 • Tachypnea: Respiratory rate > 20/min, shallow breathing in adults
 •
Tachypnea - Differential ... Diagnosis Framework ... 20/min, shallow breathing ... • Asthma • COPD ... #Diagnosis #pulmonary
An Algorithm for the Diagnosis of Wheezing and Stridor

Stridor: Louder, constant-pitch sound over central airways
Wheezing: Musical
Algorithm for the Diagnosis ... Bronchoconstriction: Asthma, COPD ... Stridor #Noisy #Breathing ... #differential # ... #pulmonary
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
Miliary Pattern ... Diagnosis of Miliary ... #differential # ... diagnosis #pulmonary ... CXR #clinical #CT
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
with a nodular pattern ... Respiratory bronchiolitis ... #Clinical #Diagnosis ... #Radiology #Pulmonary ... NodularPattern #Differential
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
in ground glass pattern ... predominance: Respiratory ... bronchiolitis #Diagnosis ... #Radiology #Pulmonary ... #GroundGlass #Differential
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
Differential diagnosis ... to look at the pattern ... called cryptogenic (COP ... #Diagnosis #Radiology ... #Pulmonary #CXR
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
heart failure, COPD ... CXR +/- High res CT ... Urine Histo Ag, Respiratory ... HIVAIDS #workup #diagnosis ... #evaluation #differential
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
obstruction • COPD ... parenchyma Diagnosis ... high-resolution chest CT ... #differential # ... diagnosis