12 results
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Nodular pattern ... nodules, notice sparing ... CTChest #Nodular #Pattern ... #Comparison #Table
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Low Attenuation pattern ... woman of child-bearing ... LowAttenuation #Cystic #Pattern ... #Comparison #Table
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Low Attenuation pattern ... woman of child-bearing ... LowAttenuation #Cystic #Pattern ... #Comparison #Table
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
with a nodular pattern ... nodules, notice sparing ... CTChest #Nodular #Pattern ... #Differential #Comparison ... #Table #RadiologyAssistant
Hair Loss (Alopecia) - General (Diffuse and Focal) Differential Diagnosis Algorithm

DIFFUSE
Scarring - Irreversible-biopsy required
 • Lupus
Alopecia) - General (Diffuse ... Differential Diagnosis Algorithm ... DIFFUSE Scarring ... planopilaris Pattern ... Differential #Diagnosis #Algorithm
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
capillaritis leading to diffuse ... hemorrhage (DAH) • Diffuse ... opacities with sparing ... • IF staining patterns ... differential #diagnosis #management
First-line therapies for Asthma, Asthma-COPD Overlap and COPD

The diagnosis of COPD, asthma, and ACO initially requires
identification of the type ... and pattern of ... #Diagnosis #Management ... #Differences #Algorithm
Diffuse Hair Loss (Alopecia) - Differential Diagnosis Algorithm

Scarring - Irreversible-biopsy required
 • Lupus erythematosus
 • Lichen
Diffuse Hair Loss ... Differential Diagnosis Algorithm ... Scarring - Irreversible-biopsy ... planopilaris Pattern ... Psychological stress #Diffuse
Reticular pattern 
1. Lymphangitic carcinomatosis: irregular septal thickening, usually focal or unilateral 50% adenopathy', known carcinoma.
2.
Reticular pattern ... thickening (crazy paving ... CTChest #Reticular #Pattern ... #Comparison #Table
In ARDS, we know that the lungs are so diffusely injured that the remaining total area
the lungs are so diffusely ... injury may be diffuse ... see heterogenous patterns ... relative lung sparing ... pathophysiology #diagnosis #management