15 results
Nodular pattern(2)
1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy.
2. TB: Tree-in-bud appearance in a patient
Nodular pattern( ... #Clinical #Radiology ... #HRCT #CTChest ... #Nodular #Pattern ... #Comparison #Table
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Nodular pattern ... #Clinical #Radiology ... #HRCT #CTChest ... #Nodular #Pattern ... #Comparison #Table
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
Low Attenuation pattern ... (LAM): uniform cysts ... #Clinical #Radiology ... #HRCT #CTChest ... #Pattern #Comparison
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
reticular, nodular ... The cystic pattern ... in many cases UIP ... #Diagnosis #Radiology ... #Pulmonary #CXR
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
Low Attenuation pattern ... (LAM): regular cysts ... #Clinical #Radiology ... #HRCT #CTChest ... #Pattern #Comparison
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
(LAM, LIP, Langerhans ... on the basis of HRCT ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... Differential #Diagram #Comparison
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Nodular LCH: - Sarcoidosis ... central dot. - LIP ... #Clinical #Diagnosis ... #Radiology #CTChest ... #Differential #Comparison
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
before the typical cysts ... #Clinical #Diagnosis ... #Radiology #Pulmonary ... #CTChest #Nodular ... #Differential #Comparison
Honeycombing represents the second reticular pattern recognizable on HRCT.
Because of the cystic appearance, honeycombing is also
second reticular pattern ... recognizable on HRCT ... Because of the cystic ... #Clinical #Radiology ... #CTChest #Honeycombing
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
pattern of pulmonary ... On a chest X-ray ... A HRCT is needed ... HRCT demonstrated ... #Clinical #Radiology