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Lung Segment Anatomy Annotated on Chest CT
Right Lung:
 • Upper Lobe: Apical, Posterior, Anterior
 • Middle
Posterior, Anterior • Middle ... Lateral, Medial • Lower ... Inferior lingular • Lower ... #CT #CTChest #pulmonary ... #clinical #radiology
Bronchoscopy Anatomy - Labeled
A large part of pulmonary is procedural based, and bronchoscopy is used to
large part of pulmonary ... segment (B3) Right middle ... segment (B5) Right lower ... Anatomy #Labeled #clinical ... #video #pulmonary
Artery-to-bronchus ratio 
Normally the vessels in the upper lobes are smaller than the accompanying bronchus with
equal and in the lower ... redistribution of pulmonary ... the upper and middle ... #Clinical #Radiology
Mediastinal Widening - Differential Diagnosis

 • Vascular: Aortic dissection, Aortic anourysm, Enlarged pulmonary arteries, Venous or
anourysm, Enlarged pulmonary ... duplicated SVC) • Pulmonary ... : Upper or middle ... Germ cell tumor), Middle ... Differential #Diagnosis #pulmonary
Hoover's sign on Physical Exam
Paradoxical retraction of the lower intercostal spaces on inspiration
Pulmonary hyperinflation → flattening
retraction of the lower ... on inspiration Pulmonary ... diameter of the lower ... #PhysicalExam #Clinical ... #Respiratory #pulmonary
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
- Sarcoidosis Lower ... - Aspiration - Pulmonary ... Diagnosis #Radiology #Pulmonary ... Distribution #Upper #Lower
Kussmaul's Sign and Friedreich's Sign on Neck Examination

A middle-aged M with unknown PMH presents with dyspnea.
Examination A middle-aged ... spot on the skin (middle ... chest, lower part ... #PhysicalExam #Clinical
The mediastinum can be divided into an anterior, middle and posterior compartment, each with it's own
into an anterior, middle ... #Clinical #Radiology ... Lateral #Anterior #Middle
Mediastinal Mass - Differential Diagnosis
Anterior Mediastinal Mass:
 • Thymus (Thymoma, carcinoma, hyperplasia, cyst)
 • Lymphoma
 •
fibroma/sarcoma) Middle ... Differential #Diagnosis #pulmonary ... #anterior #middle
Pneumonia on Chest Xray and POCUS

Extensive pneumonia in lower left lobe (red arrow). 
POCUS: Dynamic air
Extensive pneumonia in lower ... CXR #Comparison #Clinical ... #Lung #Pulmonary ... #Clinical