31 results
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
bronchiolitis (RB-ILD ... edema #Diagnosis #Radiology ... HRCT #ChestCT #Differential ... #Upper #Lower #RadiologyAssistant
Etiologies of dilated cardiomyopathy. HF, heart failure; HFrEF, heart failure with reduced ejection fraction; HIV, human
HF, heart failure ... immunodeficiency virus ... cardiomyopathy #differential ... #diagnosis #cardiology
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Hypersensitivity pneumonitis: ill ... #Clinical #Radiology ... Nodular #Pattern #Comparison ... #Table #RadiologyAssistant
CNS Infections - Viral Encephalitis and Bacterial Meningitis - Differential Diagnosis Framework

Viral Encephalitis:
MCC: Enteroviruses (e.g., coxsackievirus
Bacterial Meningitis - Differential ... Herpes simplex virus ... Powassan, louping ill ... indicator to differentiate ... CNS #Infections #differential
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
bronchiolitis: ill ... Clinical #Diagnosis #Radiology ... NodularPattern #Differential ... #Comparison #Table ... #RadiologyAssistant
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
#Diagnosis #Radiology ... LowAttenuation #Differential ... #Diagram #Comparison ... Emphysema #SignetRing #RadiologyAssistant
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... Clinical #Diagnosis #Radiology ... Cystic #Cysts #Differential ... #Comparison #Table ... #RadiologyAssistant
High Output Heart Failure - Pathophysiology and Differential Diagnosis
Obesity - Systemic Vasodilation, Vasoactive Adipokines
Arteriovenous Fistula -
Pathophysiology and Differential ... Acquired (e.g., iHD ... #HeartFailure #CHF ... Pathophysiology #Differential ... #Diagnosis #cardiology
On the left a patient with CHF. 
There is an increase in heart size compared to
a patient with CHF ... compared to the old ... that helpful, but comparison ... #Clinical #Radiology ... #Comparison #RadiologyAssistant
Characteristics of Common Lipid Disorders
Polygenic hypercholesterolemia
Atherogenic dyslipidemia
 • Frequently accompanied by central obesity or diabetes
Familial hypercholesterolemia,
Family history of CHD ... Family history, CHD ... Family history, HLD ... disorders #diseases #comparison ... defects #diagnosis #differential