14 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
child-bearing age - Cystic bronchiectasis ... : 'signet ring sign ... Diagnosis #Radiology #CTChest ... #Comparison #Table ... #RadiologyAssistant
High Attenuation pattern (2) 
1. Non specific interstitial pneumonitis (NSIP): ground glass with traction bronchiectasis, no
with traction bronchiectasis ... result of massive fibrosis ... Radiology #HRCT #CTChest ... Pattern #Comparison #Table ... #RadiologyAssistant
High Attenuation pattern 
1. Chronic eosinophilic pneumonia with peripheral areas of ground glass opacity.
2. Sarcoid end-stage
with peripheral areas ... end-stage with massive fibrosis ... Radiology #HRCT #CTChest ... Pattern #Comparison #Table ... #RadiologyAssistant
Bronchiectasis is defined as localized bronchial dilatation.
The diagnosis of bronchiectasis is usually based on a combination
dilatation (signet-ring sign ... A signet-ring sign ... COPD and cystic fibrosis ... #Differential # ... RadiologyAssistant
Consolidation is synonymous with airspace disease.
When you think of the causes of consolidation, think of 'what
or tumor cells (Table ... Even fibrosis as ... Radiology #Pulmonary #CTChest ... Consolidation #Differential ... #RadiologyAssistant
Summary table of common benign breast diseases and how to manage them. 
Fibroadenoma:
 • Most common
Summary table of ... Fat necrosis: • Fibrosis ... bruising/erythema/sign ... diseases #benign #differential ... surgery #causes #table
Tree-in-bud almost always indicates the presence of:
Endobronchial spread of infection (TB, MAC, any bacterial bronchopneumonia)
Airway disease
infection (cystic fibrosis ... , bronchiectasis ... Radiology #Pulmonary #CTChest ... #TreeInBud #Differential ... #RadiologyAssistant
On the left we see consolidation and ground-glass opacity in a patient with persistent chest abnormalities
weight loss without signs ... honeycombing or traction bronchiectasis ... we can rule out fibrosis ... Clinical #Radiology #CTChest ... BronchioloalveolarCarcinoma #RadiologyAssistant
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Bronchiectasis - ... Causes: • Cystic fibrosis ... evidence of cystic fibrosis ... Nasal polyps and signs ... #pulmonary #differential
On the left a patient who is treated with cytotoxic drugs for a hematologic malignancy.
The radiographic
radiographic findings are areas ... some traction bronchiectasis ... disease in the differential ... Clinical #Radiology #CTChest ... #RadiologyAssistant