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Lung Segment Anatomy Annotated on Chest CT
Right Lung:
 • Upper Lobe: Apical, Posterior, Anterior
 • Middle
Lobe: Apical, Posterior ... Anterior, Lateral, Posterior ... Anteromedial, Lateral, Posterior ... #CT #CTChest #pulmonary ... #clinical #radiology
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
result in decreased lung ... - Lung cysts (LAM ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... #SignetRing #RadiologyAssistant
#Clinical #Radiology #CXR #CTChest #Longstanding #Sarcoidosis #Fibrosis #Conglomerate #Nodules #RadiologyAssistant
#Clinical #Radiology ... #CXR #CTChest # ... Conglomerate #Nodules #RadiologyAssistant
The mediastinum can be divided into an anterior, middle and posterior compartment, each with it's own
anterior, middle and posterior ... #Clinical #Radiology ... #CXR #Lateral # ... Anterior #Middle #Posterior ... #Compartments #RadiologyAssistant
On the left we see a chest film with a typical finger-in-glove shadow.
The HRCT shows focal
left we see a chest ... the appropriate clinical ... #Clinical #Radiology ... #CXR #CTChest # ... FingerInGlove #Sign #RadiologyAssistant
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Centrilobular emphysema ... #Clinical #Radiology ... #HRCT #CTChest ... Comparison #Table #RadiologyAssistant
Centrilobular emphysema due to smoking. The periphery of the lung is spared (blue arrows). Centrilobular artery
Centrilobular emphysema ... periphery of the lung ... #Clinical #Radiology ... #CTChest #Centrilobular ... #RadiologyAssistant
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Centrilobular emphysema ... central dot. - LIP #Clinical ... #Diagnosis #Radiology ... #CTChest #Cystic ... Comparison #Table #RadiologyAssistant
On the left three different patients with lung cysts.
From left to right: Lymphangiomyomatosis, LIP and Langerhans
patients with lung ... #Clinical #Diagnosis ... #Radiology #CTChest ... Histiocytosis #RadiologyAssistant
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Centrilobular emphysema ... #Clinical #Radiology ... #HRCT #CTChest ... Comparison #Table #RadiologyAssistant