17 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
The fourth pattern ... LIP, Langerhans cell ... Radiology #Pulmonary #CTChest ... LowAttenuation #Differential ... #Diagram #Comparison
Nodular pattern(2)
1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy.
2. TB: Tree-in-bud appearance in a patient
Nodular pattern( ... Langerhans cell ... Radiology #HRCT #CTChest ... #Nodular #Pattern ... #Comparison #Table
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... low attenuation (table ... On a Chest X-Ray ... in Langerhans cell ... #Differential #
High Attenuation pattern 
1. Chronic eosinophilic pneumonia with peripheral areas of ground glass opacity.
2. Sarcoid end-stage
High Attenuation pattern ... Broncho-alveolar cell ... Radiology #HRCT #CTChest ... HighAttenuation #Pattern ... #Comparison #Table
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Low Attenuation pattern ... Langerhans cell ... Radiology #HRCT #CTChest ... LowAttenuation #Cystic #Pattern ... #Comparison #Table
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
with a nodular pattern ... Langerhans cell ... Radiology #Pulmonary #CTChest ... NodularPattern #Differential ... #Comparison #Table
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... of Langerhans cell ... Diagnosis #Radiology #CTChest ... Cystic #Cysts #Differential ... #Comparison #Table
Chest Pain Diagnosis and Management Algorithm
STEMI:
 - Hx: Pressure like CP, Radiation to arm/jaw, CAD risk
Chest Pain Diagnosis ... and Management ... Algorithm STEMI: ... onset, severe, tearing ... #Algorithm #differential
Posterior Reversible Encephalopathy Syndrome (PRES) Overview

Clinico-Radiological Syndrome, characterized by:
 • Headache
 • Seizures
 • Altered mental
marrow or stem cell ... Imaging Patterns ... Reversible course Differential ... thrombosis Testing ... Syndrome #diagnosis #management
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Diagnosis and Management ... Putrid sputum/sour-tasting ... Lung Abscess Differential ... Abscess #pulmonary #differential ... #causes #management