15 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
#Diagnosis #Radiology ... #Pulmonary #CTChest ... LowAttenuation #Differential ... #Diagram #Comparison ... Emphysema #SignetRing #RadiologyAssistant
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
#Clinical #Diagnosis ... #Radiology #Pulmonary ... #CTChest #Nodular ... #Comparison #Table ... #RadiologyAssistant
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... central dot. - LIP #Clinical ... #CTChest #Cystic ... #Comparison #Table ... #RadiologyAssistant
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
bronchiolitis #Diagnosis ... #Radiology #Pulmonary ... #CTChest #GGO # ... #GroundGlass #Differential ... #RadiologyAssistant
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
Patterns - Differential ... Diagnosis Framework ... Hypersensitivity Pneumonitis, Respiratory ... Histiocytosis, Lymphocytic ... #Diagnosis #pulmonary
Differential diagnosis of Lymphangitic Carcinomatosis. 
On the left multiple diseases showing septal thickening:
1. Lymphangitic carcinomatosis: irregular
Differential diagnosis ... #Clinical #Radiology ... #Pulmonary #CTChest ... #Comparison #Table ... #RadiologyAssistant
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
without associated pulmonary ... #Clinical #Diagnosis ... #Radiology #CTChest ... Cyst #Emphysema #Comparison ... #RadiologyAssistant
Pulmonary Infections in HIV-AIDS
Bacterial: 
 • No organism identified, Strep pneumoniae, H. influenzae, S.aureus, Streptococcus Grp
Primary pulm HTN, Lymphocytic ... /- High res CT chest ... Urine Histo Ag, Respiratory ... HIVAIDS #workup #diagnosis ... #evaluation #differential
Empyema Necessitans (EN) on Chest Wall Physical Examination

Pulmonary teaching case: you are called to the bedside
Examination Pulmonary ... drain - What’s the diagnosis ... #PhysicalExam # ... clinical #video ... #pulmonary #respiratory
Differential diagnosis of TB.
Primary TB: Acute bacterial pneumonia
Secondary TB: Sarcoidosis, Silicosis, Pneumoconiosis
Endobronchial spread of TB: Bronchopneumonia,
Differential diagnosis ... #Clinical #Diagnosis ... #Radiology #CTChest ... #MiliaryTB #Comparison ... Metastases #Mimic #RadiologyAssistant