13 results
ARDS/VALI progression over the course of 1 week 
 (a) Day 1 - No pathological findings.
Progressing to diffuse alveolar ... structures help in the differential ... oedema due to heart ... #Clinical #Radiology ... #CXR #ChestXRay
Differential diagnosis of Lymphangitic Carcinomatosis. 
On the left multiple diseases showing septal thickening:
1. Lymphangitic carcinomatosis: irregular
Differential diagnosis ... , superimposed inter ... edema. ... #Clinical #Radiology ... #Pulmonary #CTChest
Chest Pain - Differential Diagnosis Framework

Cardiovascular Causes of Chest Pain:
 • Myocardium:
	- Myocarditis
	- CAD/ACS
	- Valvulopathy
	- Myopericarditis
Chest Pain - Differential ... - Tamponade Pulmonary ... Costochondritis - Tietze syndrome ... Pleuritis • Alveoli ... : - CHF - Pneumonia
Pulmonary Renal Syndrome

Definition: Diffuse alveolar hemorrhage + Glomerulonephritis
Presentation (Pulmonary and renal manifestations can occur weeks apart):
: Diffuse alveolar ... Hemoptysis, Peripheral edema ... , anti-CCP • CXR ... high resolution chest ... #differential #
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Chronic Dyspnea - Differential ... Acute Coronary Syndrome ... Alveoli • Pneumonia ... • ARDS • COPD ... Interstitium • ILD • CHF
Approach to the A-a Gradient
A-a gradient = PAO2 - PaO2
A-a gradient = [FiO2 x (Patm -
Hypoventilation Syndrome ... Hepatopulmonary Syndrome ... : Atelectasis, ARDS ... Edema, Atelectasis ... Hypoxia #hypoxemia #differential
Noncardiogenic Pulmonary Edema - Differential Diagnosis Framework

NCPE Pathophysiology:
Noncardiogenic pulmonary edema occurs because of excessive pulmonary capillary
Edema - Differential ... ischemic changes CXR ... respiratory distress syndrome ... (ARDS) • Opioid ... #edema #NCPE #differential
Notice that even within each lobe there is a gravity dependent difference in density.
This is only
capillary leak like in ARDS ... #Clinical #Radiology ... #CTChest #CHF # ... Alveolar #Pulmonary ... #Edema #AlveolarEdema
Heart failure with Reduced Ejection Fraction (HFrEF)
Clinical Presentation
1. Typical symptoms: dyspnea, orthopnea paroxysmal noctumal dyspnea, fatigue,
Chest x-ray: signs ... Kerley B lines, alveolar ... → no signs of CXR ... Pharmacology: • ACE ... Inhibitors and ARBs
Differentiation Syndrome in APML
Epidemiology:
 • Incidence: common in APL (2-48% depending on the study)
 • Triggers:
Differentiation Syndrome ... myalgias, HoTN, edema ... - pulmonary opacities ... initiation • Differential ... sepsis), PE, DAH, CHF