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Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... Lung abscess ... Blood cultures • CXR ... CT Lung Abscess ... #Abscess #pulmonary
Radiologists use many terms to describe areas of decreased density or lucencies within the lung, like
we describe a chest ... visible wall #CXR ... #Differential #Table ... #Cyst #Lung #Pulmonary ... #Diagnosis #Radiology
Chest X-Ray Interpretation Checklist
Outline ALL bones
Check soft tissues
Assess heart borders
Is density, behind the heart the same
compare hilum position ... cervical rib Check lung ... #XRay #CXR #Interpretation ... #Checklist #radiology ... #diagnosis #pulmonary
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
TRALI vs TACO - Transfusion Reactions
TRALI:
 • Epidemiology: 0.1% of transfused patientsl
 • Risk factors: Critical
: Age>60, CKD, CHF ... heart failure, positive ... fluid balance, and CXR ... with pulmonary ... diagnosis #comparison #table
Cavitation - Pneumonia
In virulent pyogenic infections an abscess may form within the consolidated lung as a
infections an abscess ... the consolidated lung ... one month after treatment ... #Clinical #Radiology ... #CXR #CTChest #
Nontuberculous Mycobacteria (NTM) Infections 

Mycobacterial species other than those belonging to the Mycobacterium tuberculosis complex and
• Nodular or cavitary ... massiliense in CF ... Mimics TB with: Cavitary ... • Dyspnea, • Chest ... Imaging, high res CT
Assessment of Chest Tube Drains
Stepwise assessment of Chest Tube Function
TUBE POSITIONING
 • Look at the CXR:
• Look at the CXR ... cavity? ... since a prior CXR ... injury to the lung ... tube while on positive
Increased pulmonary venous pressure is related to the pulmonary capillary wedge pressure (PCWP) and can be
features on the chest ... film (Table). ... chronic obstructive lung ... #Diagnosis #Radiology ... #CHF #CXR #Stages
Mycoses

HISTOPLASMOSIS
• Inhalation of conidia → Yeast → travel to lymph nodes → spread in body
• Bird
Inhalation of spores ... Sinusitis • Brain abscess ... change in the lungs ... nails, bronchi, lungs ... infection have positive