11 results
Differential diagnosis of Lymphangitic Carcinomatosis. 
On the left multiple diseases showing septal thickening:
1. Lymphangitic carcinomatosis: irregular
Differential diagnosis ... demarcated secondary lobeles ... #CTChest #LymphangiticCarcinomatosis ... Carcinomatosis #Mimic #Differential ... Comparison #Table #RadiologyAssistant
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
Filling of the alveolar ... Diagnosis #Radiology #Pulmonary ... #CTChest #GGO # ... #GroundGlass #Differential ... #RadiologyAssistant
Consolidation is synonymous with airspace disease.
When you think of the causes of consolidation, think of 'what
the air in the alveoli ... Diagnosis #Radiology #Pulmonary ... #CTChest #Consolidation ... #Differential # ... RadiologyAssistant
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
Definition: Diffuse alveolar ... symptomatology Differential ... high resolution chest ... out infection, biopsy ... Renal #Syndrome #differential
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
coagulopathy) • CBC w differential ... Diagnosis of PRS: Biopsy ... leading to diffuse alveolar ... typically seen on chest ... Renal #Syndromes #differential
Notice that even within each lobe there is a gravity dependent difference in density.
This is only
even within each lobe ... Clinical #Radiology #CTChest ... #CHF #Alveolar ... #Pulmonary #Edema ... Gravity #Dependent #RadiologyAssistant
Uncommon Causes of Noncardiogenic Pulmonary Edema (NCPE) - Differential Diagnosis Framework

High Altitude Pulmonary Edema:
 • Accumulation
Edema (NCPE) - Differential ... the right middle lobe ... interstitium and alveoli ... infiltrates on chest ... edema #causes #differential
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
has a limited differential ... in interstitial pulmonary ... or lymphoma and alveolar ... #HRCT #CTChest ... #RadiologyAssistant
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
chronic HP (right) Differential ... smokers, upper lobe ... centrilobular emphysema. - Alveolar ... Diagnosis #Radiology #CTChest ... Fibrosis #Mimic #ILD #RadiologyAssistant
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
Illnesses: • Pulmonary ... of right middle lobe ... • Dyspnea, • Chest ... washings, Lung biopsy ... NTM #Infections #differential