9 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... bronchiectasis: ... central dot. - LIP ... Clinical #Diagnosis #Radiology ... #Cysts #Differential
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
Emphysema - Lung cysts ... (LAM, LIP, Langerhans ... histiocytosis) - Bronchiectasis ... #Diagnosis #Radiology ... LowAttenuation #Differential
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
CT Patterns - Differential ... Hypersensitivity Pneumonitis ... Antitripsyn Def • Cysts ... Sarcoidosis • Bronchiectasis ... Diagnosis #pulmonary #radiology
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... The cystic pattern ... When the cysts have ... in many cases UIP ... #Diagnosis #Radiology
HRCT findings in UIP
Honeycombing consisting of multilayered thick-walled cysts.
Architectural distortion with traction bronchiectasis due to fibrosis.
Predominance
HRCT findings in UIP ... multilayered thick-walled cysts ... with traction bronchiectasis ... lymphadenopathy #Clinical #Radiology ... #Interstitial #Pneumonitis
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Common Causes: • Cystic ... no evidence of cystic ... Physical stigmata of cor ... , CCP, ANCA • HIV ... #pulmonary #differential
Differential diagnosis of Lymphangiomyomatosis:
Langerhans cell histiocytosis: > 90% are smokers, cysts have irregular shapes and the
Differential diagnosis ... 90% are smokers, cysts ... Lymphoid interstitial pneumonitis ... patients with HIV ... #Clinical #Radiology
On the left a chest film of a patient with UIP due to IPF.
The findings on
a patient with UIP ... thick walls of the cysts ... #Clinical #Radiology ... #CXR #CTChest # ... #Interstitial #Pneumonitis
On the left a patient who is treated with cytotoxic drugs for a hematologic malignancy.
The radiographic
some traction bronchiectasis ... hypersensitivity pneumonitis ... patients with a UIP ... disease in the differential ... #Clinical #Radiology