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This is not a pneumothorax but a skin fold.
The radiography was performed supine with a CR
This is not a pneumothorax ... but a skin fold ... Notice that there are ... lung markings beyond ... #Fold #Mimic #RadiologyAssistant
Here two CXRs of another patient with obvious skinfolds. The radiography was performed supine with a
Notice that there are ... lung markings beyond ... the apparent pneumothorax ... #SkinFold #Skin ... #Fold #Mimic #RadiologyAssistant
Stage I - Redistribution
In a normal chest film with the patient standing erect, the pulmonary vessels
In these cases comparison ... with old fims can ... Clinical #Radiology #CXR ... #CHF #Cephalization ... Redistribution #RadiologyAssistant
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 #CXR ... #Comparison #RadiologyAssistant
Approach to Eosinophilic Lung Diseases
 • Acute Eosinophilic Pneumonia (< 1 wk) - ~30yo, M; Recent
to Eosinophilic Lung ... Diseases • Acute ... Hx of asthma, CF ... loss; CV, CNS, skin ... differential #diagnosis #comparison
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
: Hemoptysis, pneumothorax ... • Tuberculin skin ... and quantiferon-gold ... and Culture • CXR ... disease • Check CXR
There are three principal varieties of pulmonary edema: cardiac, overhydration and increased capillary permeability (ARDS). 
The
permeability or acute ... Clinical #Radiology #CXR ... #CHF #Vascular ... Pedicle #Width #Comparison ... VascularPedicleWidth #RadiologyAssistant
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
: Hemoptysis, pneumothorax ... • Tuberculin skin ... and quantiferon-gold ... and Culture • CXR ... disease • Check CXR
Mycoses

HISTOPLASMOSIS
• Inhalation of conidia → Yeast → travel to lymph nodes → spread in body
• Bird
osteomyelitis or skin ... that exists as a mold ... change in the lungs ... Mouth, throat, skin ... nails, bronchi, lungs