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Lung Segment Anatomy Annotated on Chest CT
Right Lung:
 • Upper Lobe: Apical, Posterior, Anterior
 • Middle
Lung: • Upper Lobe ... Medial • Lower Lobe ... Lung: • Upper Lobe ... #CT #CTChest #pulmonary ... #clinical #radiology
ARDS/VALI progression over the course of 1 week 
 (a) Day 1 - No pathological findings.
) Day 2 - some pulmonary ... consolidations in lower lobes ... differential diagnosis of pulmonary ... #Clinical #Radiology
Notice the cavitation especially on the right.
In the left upper lobe there is probably some traction-bronchiectasis
the left upper lobe ... #Clinical #Radiology ... #Pulmonary #CTChest
Mediastinal Widening - Differential Diagnosis

 • Vascular: Aortic dissection, Aortic anourysm, Enlarged pulmonary arteries, Venous or
anourysm, Enlarged pulmonary ... duplicated SVC) • Pulmonary ... Upper or middle lobe ... Differential #Diagnosis #pulmonary ... #radiology
Normal Hilar Anatomy on Chest X-Ray
The hilum is 95% vessels and while it is not important
branches and the pulmonary ... LUL - left upper lobe ... - Right upper lobe ... intermedius LPA - left Pulmonary ... CXR #clinical #radiology
Nontuberculous mycobacteria
Nontuberculous mycobacteria, also known as atypical mycobacteria, are all the other mycobacteria which can cause
which can cause pulmonary ... in both upper lobes ... #Clinical #Radiology
Artery-to-bronchus ratio 
Normally the vessels in the upper lobes are smaller than the accompanying bronchus with
vessels in the upper lobes ... and in the lower lobes ... redistribution of pulmonary ... upper and middle lobes ... #Clinical #Radiology
Upper Lobe Lung Diseases - STAR CHASERS Mnemonic

S - Silicosis
T - Tuberculosis
A - Ankylosing Spondylitis
R -
Upper Lobe Lung ... predominantly in the upper lobes ... Pulmonary Diseases ... With Upper Lobe ... #STARCHASERS #radiology
Radiographic Signs of Lobar Collapse
General findings to look for:
 • Crowding of ribs near collapse
 •
Hyperlucency of other lobes ... lobar #collapse #pulmonary ... #lung #signs #radiology
Stage I - Redistribution
In a normal chest film with the patient standing erect, the pulmonary vessels
standing erect, the pulmonary ... The pulmonary vascular ... lower to the upper lobes ... Views of the upper lobe ... #Clinical #Radiology