52 results
Interstitial pneumonias
An acute reticular pattern is most frequently caused by interstitial edema due to cardiac heart
Interstitial pneumonias ... most frequently caused ... The other cause ... cough and some fever ... Clinical #Radiology #CXR
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Fever, weight ... Legionella: • Nausea ... factor • May cause ... reported in 100% of cases ... Infections #HIV #AIDS #pulmonary
Causes of Acute Pediatric Cough - Differential Diagnosis Algorithm
No Fever, No Tachypnea
 - Normal Chest Auscultation
Causes of Acute ... Fever, Tachypnea ... • Bacterial pneumonia ... Atypical or viral pneumonia ... Diagnosis #Algorithm #Causes
Lung Abscess
Microbiology:
 • Polymicrobial 
 • Anaerobes (most common) 
Clinical: 
 • Indolent symptoms that evolve
to rnonths • Fever ... Abscess #Diagnosis #Pulmonary ... #Clinical #CXR ... #ChestXRay
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
Unknown • 6-7 cases ... cough, dyspnea, fever ... - Imaging: • CXR ... , Pulmonary lymphoma ... #COP #BOOP #pulmonary
Based on the images alone, it is usually not possible to determine the cause of the
determine the cause ... and other non-pulmonary ... Lobar pneumonia ... with low oxygen level ... Diagnosis #Radiology #CXR
Venn Diagram - Does this patient have pneumonia?
Diagnosis is generally based on three lines of evidence:
this patient have pneumonia ... infiltrate (e.g., CXR ... Inflammation (e.g., fever ... procalcitonin) - Pulmonary ... #Pneumonia #Venn
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
• Most common cause ... Blood cultures • CXR ... early disease) • CXR ... Lung #Abscess #pulmonary ... #differential #causes
Tachypnea - Differential Diagnosis Framework

Definitions
 • Tachypnea: Respiratory rate > 20/min, shallow breathing in adults
 •
deep breathing Pulmonary ... Asthma • COPD • Pneumonia ... Tachypnea: • Pulmonary ... • Temperature/FEVER ... Differential #Diagnosis #pulmonary
Cavitary Lesion with Air-Fluid Level on Chest XRay

70+ year old man with PMH of latent TB
with Air-Fluid Level ... is his original CXR ... Labeled CXR: ... #ChestXRay #Clinical ... #Pulmonary #Radiology