27 results
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... low attenuation (table ... in Langerhans cell ... seen and in many cases ... #Differential #
Hyperparathyroidism classification
Different causes and features of hyperparathyroidism - raised parathormone (PTH).

#Diagnosis #Hyperparathyroidism #Differential #Primary #Secondary #Tertiary
Hyperparathyroidism classification ... Different causes ... Hyperparathyroidism #Differential ... Secondary #Tertiary #Comparison ... #Table #Classification
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
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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
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
Lymphomas and Lymphoproliferative Disorders - Differential Diagnosis Algorithm
Hodgkin Lymphoma ~40% - Characteristic For Reed-Sternberg (RS) Cells
Lymphoproliferative Disorders - Differential ... Diagnosis Algorithm ... involvement, irregular pattern ... Lymphoproliferative #Disorders #Classification ... #algorithm
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
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
Summary table of ... Allergen-specific lgE causes ... types #allergy #table ... #classification ... #comparison
Consolidation is synonymous with airspace disease.
When you think of the causes of consolidation, think of 'what
you think of the causes ... blood or tumor cells ... (Table on the left ... Radiology #Pulmonary #CTChest ... Consolidation #Differential