18 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Cystic LCH: - LAM ... central dot. - LIP #Clinical ... #Diagnosis #Radiology ... #CTChest #Cystic ... #Comparison #Table
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
woman of child-bearing ... LCH: multiple round ... #Clinical #Radiology ... #HRCT #CTChest ... #Pattern #Comparison
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
histiocytosis (LCH ... woman of child-bearing ... #Clinical #Radiology ... #HRCT #CTChest ... #Pattern #Comparison
Feeding Vessel Sign on Chest CT
 • Distinct pulmonary vessel leading into a lung nodule or
on Chest CT • ... • DDx: Septic ... doi.org/10.1016/j.chest ... Lung #Pulmonary #diagnosis ... #radiology #clinical
On the left three different patients with lung cysts.
From left to right: Lymphangiomyomatosis, LIP and Langerhans
patients with lung cysts ... #Clinical #Diagnosis ... #Radiology #CTChest ... #Cystic #Comparison
Cystic versus Reticular
It can be difficult to determine whether we are dealing with a reticular pattern
whether we are dealing ... The CXR is of a ... LCH is called a ... #Clinical #Radiology ... #CXR #CTChest #
Septic emboli
Septic emboli usually present as multiple ill-defined nodules.
In about 50% cavitation is seen.
CT demonstrates more
can suggest the diagnosis ... in the proper clinical ... nodules and a feeding ... #Clinical #Radiology ... #CXR #CTChest #
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
Emphysema - Lung cysts ... pattern can be readily ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... Differential #Diagram #Comparison
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... pattern we are dealing ... The cystic pattern ... When the cysts have ... #Diagnosis #Radiology
There is a hydropneumothorax.
Notice the air-fluid level (blue arrow).
The upper lobe is still attached to the
attached to the chest ... is a possible diagnosis ... small airways leading ... #Clinical #Radiology ... #CXR #Pneumothorax