11 results
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
Algorithm for nodular ... pattern The algorithm ... the nodules are diffuse ... Radiology #Pulmonary #HRCT ... MultipleNodules #Nodules #Differential
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
Differential diagnosis ... to think of the differential ... to look at the pattern ... more than one pattern ... Radiology #Pulmonary #CXR
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT ... Patterns - Differential ... Nodular: • Random ... HighRes #Chest #CT ... #Patterns #Differential
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
Miliary Pattern ... mm) nodules • Diffusely ... process or (rarely) diffuse ... diagnosis #pulmonary #CXR ... #clinical #CT
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
Organizing Pneumonia (COP ... - Imaging: • CXR ... consolidation and GG pattern ... , cavities • HRCT ... Pulmonary lymphoma, Diffuse
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
Definition: Diffuse ... symptomatology Differential ... • CXR (diffuse ... resolution chest CT ... Renal #Syndrome #differential
Causes of Hemoptysis - Differential Diagnosis Algorithm
Massive Hemoptysis (>I00 mL in 24 hours)
 • Malignancy
 •
Diagnosis Algorithm ... Malformation Normal CXR ... /CT • Hematemesis ... • Bronchitis Diffuse ... CT Abnormalities
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
EGPA • ESR and CRP ... Other tests: • CT ... hemorrhage (DAH) • Diffuse ... seen on chest CT ... • IF staining patterns
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
obstruction • COPD ... Physical stigmata of cor ... Diagnosis: • HRCT ... high-resolution chest CT ... Bronchiectasis #pulmonary #differential
On the left a smoker with RB-ILD with subtle HRCT-findings.
The dominant pattern is ground glass opacification.
Additional
RB-ILD with subtle HRCT-findings ... The dominant pattern ... these non-specific CT ... there is a broad differential ... PCP would be on top