11 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... Diagnosis #Radiology #CTChest ... Cystic #Cysts #Differential ... #Comparison #Table ... #RadiologyAssistant
Stage I - Redistribution
In a normal chest film with the patient standing erect, the pulmonary vessels
In a normal chest ... applies to chest ... In these cases comparison ... Clinical #Radiology #CXR ... #RadiologyAssistant
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
perilymphatic distribution ... Radiology #Pulmonary #CTChest ... NodularPattern #Differential ... #Comparison #Table ... #RadiologyAssistant
Notice that there are multiple densities in both lungs.
The larger ones are ill-defined and maybe there
multiple ill-defined masses ... is a peripheral distribution ... dealing with the differential ... Clinical #Radiology #CXR ... OrganizingPneumonia #BOOP #RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... On a Chest X-Ray ... seen and in many cases ... Interstitial #Pattern #Differential ... #RadiologyAssistant
Differential diagnosis of Lymphangitic Carcinomatosis. 
On the left multiple diseases showing septal thickening:
1. Lymphangitic carcinomatosis: irregular
Differential diagnosis ... gravitational distribution ... Radiology #Pulmonary #CTChest ... #Comparison #Table ... #RadiologyAssistant
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
breath sounds • Rales ... Blood cultures • CXR ... early disease) • CXR ... Lung Abscess Differential ... Abscess #pulmonary #differential
Differential diagnosis of TB.
Primary TB: Acute bacterial pneumonia
Secondary TB: Sarcoidosis, Silicosis, Pneumoconiosis
Endobronchial spread of TB: Bronchopneumonia,
Differential diagnosis ... have a random distribution ... Diagnosis #Radiology #CTChest ... #MiliaryTB #Comparison ... Metastases #Mimic #RadiologyAssistant
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
chronic HP (right) Differential ... strong lower zone distribution ... Diagnosis #Radiology #CTChest ... #UIP #Comparison ... Fibrosis #Mimic #ILD #RadiologyAssistant
Hodgkin's Lymphoma Overview

Hodgkin's lymphoma (HL) is an uncommon hematological malignancy arising from mature B cells. It
of about three cases ... a bimodal age distribution ... Serum Copper • Chest ... Immunohistochemical studies (to differentiate ... hematology #oncology #management