10 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
: 'signet ring sign ... Centrilobular emphysema ... #Diagnosis #Radiology ... #CTChest #Cystic ... #Differential #Comparison
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
centrilobular emphysema ... #Clinical #Diagnosis ... #Radiology #CTChest ... #UIP #Comparison ... #Mimic #ILD #RadiologyAssistant
Emphysema, when it is severe, can mimick Langerhans cell histiosytosis.
When it extends beyond the centrilobular area
is severe, can mimick ... bronchiolitis and even fibrosis ... #Clinical #Radiology ... #CTChest #Emphysema ... #RadiologyAssistant
Cavities frequently arise within a mass or an area of consolidation as a result of necrosis.
We
the differential diagnosis ... with end-stage fibrosis ... #Clinical #Diagnosis ... #Radiology #CTChest ... #Comparison #RadiologyAssistant
Differential diagnosis of Lymphangitic Carcinomatosis. 
On the left multiple diseases showing septal thickening:
1. Lymphangitic carcinomatosis: irregular
Differential diagnosis ... #Clinical #Radiology ... #Pulmonary #CTChest ... Carcinomatosis #Mimic ... #Differential #Comparison
Differential diagnosis of TB.
Primary TB: Acute bacterial pneumonia
Secondary TB: Sarcoidosis, Silicosis, Pneumoconiosis
Endobronchial spread of TB: Bronchopneumonia,
#Clinical #Diagnosis ... #Radiology #CTChest ... #MiliaryTB #Comparison ... #Metastases #Mimic ... #RadiologyAssistant
On the left a chest film of a 19 year old patient with Langerhans cell histiocytosis.
The
challenging differential diagnosis ... the central dot sign ... #Clinical #Radiology ... #CXR #CTChest # ... Histiocytosis #Cystic #RadiologyAssistant
On the left two cases with chronic consolidation. 
There are patchy non-segmental consolidations in a subpleural
The final diagnosis ... will be other signs ... look like this #Clinical ... #Radiology #CTChest ... OrganizingPneumonia #RadiologyAssistant
Sarcoidosis - Diagnosis and Management Summary
Epidemiology
1) High incidence in Scandinavian countries (11-24 cases per 100,000 individuals
and Management ... fibroblasts → fibrosis ... renal failure Clinical ... anterior/posterior MSK ... #Management #Signs
Chronic hypersensitivity pneumonitis (2)
The case on the left shows an inspiratory and expiratory scan: the mosaic
Signs of fibrosis ... left suggest the diagnosis ... #Clinical #Radiology ... #CTChest #Chronic ... #RadiologyAssistant