27 results
COVID-19 Patterns of Lung Findings on Chest CT
1. Reverse Halo Sign
2. ARDS
3. Crazy-Paving Pattern
4. Bilateral Peripheral
CT 1. ... ARDS 3. ... Organizing Pneumonia ... #Pulmonary #ChestCT ... #radiology #CTChest
Acute Respiratory Distress Syndrome – ARDS: Clinical Cheat Sheet

An acute diffuse, inflammatory lung injury, leading to
leading to increased pulmonary ... be detected on CT ... or CXR ● PaO2/ ... the underlying cause ... oxygenation in pneumonia
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Chest Wall Abnormalities ... Alveoli • Pneumonia ... • ARDS • COPD ... Interstitium • ILD • CHF ... #Causes
Chronic Cough - Differential Diagnosis Algorithm
Red Flags:
 • Fever, night sweats, chills (infection)
 • Weight loss,
disease or CHF) ... lymadenopathy, clubbing, chest ... ) • Abnormal CXR ... refer + order CT ... #causes
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
• Pleuritic chest ... • CT: Halo sign ... factor • May cause ... Infections #HIV #AIDS ... #pulmonary #differential
Venn Diagram - Does this patient have pneumonia?
Diagnosis is generally based on three lines of evidence:
this patient have pneumonia ... evidence of a chest ... ., CXR, CT, ultrasound ... pain) and signs ... #Pneumonia #Venn
Radiographic appearances of pulmonary diseases in HIV/AIDS Patients
 • Diffuse Interstitial Infiltrates: Pneumocystis jirovecii, M.tuberculosis, Histoplasma
edema; ARDS, Metastatic ... complex • Nodular/Masses ... Actinomyces spp., NHL; Lung ... differential #diagnosis #chestCT ... #radiology
Stage I - Redistribution
In a normal chest film with the patient standing erect, the pulmonary vessels
supplying the upper lung ... supplying the lung ... during a period of CHF ... #Clinical #Radiology ... #CXR #CHF #Cephalization
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Blood cultures • CXR ... early disease) • CXR ... CT Lung Abscess ... • Vasculitis (e.g ... #Abscess #pulmonary
Hampton hump is a radiologic sign which consists of a shallow wedge-shaped opacity in the periphery
sign which consists ... periphery of the lung ... In this case, pulmonary ... confirmed with chest ... CT angiography.