19 results
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
cysts (LAM, LIP ... on the basis of HRCT ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... Differential #Diagram #Comparison
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
patterns: reticular, nodular ... On a Chest X-Ray ... histiocytosis or honeycombing ... in many cases UIP ... #Diagnosis #Radiology
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
On a chest X-ray ... A HRCT is needed ... to confirm the diagnosis ... HRCT demonstrated ... #Clinical #Radiology
The CXR demonstrates a reticular interstitial pattern with a preference at the lung bases.
The HRCT demonstrates
preference at the lung ... The HRCT demonstrates ... honeycombing and ... #Clinical #Radiology ... #CXR #UIP #CTChest
UIP with honeycombing (left) and chronic HP (right)
Differential diagnosis of Hypersensitivity Pneumonitis.
Subacute stage:
- RB-ILD: seen in
UIP with honeycombing ... show very similar HRCT ... throughout the whole lung ... #Radiology #CTChest ... #UIP #Comparison
On the left three different patients with lung cysts.
From left to right: Lymphangiomyomatosis, LIP and Langerhans
patients with lung ... Lymphangiomyomatosis, LIP ... #Clinical #Diagnosis ... #Radiology #CTChest ... #Cystic #Comparison
The distribution of nodules shown on HRCT is the most important factor in making an accurate
shown on HRCT is ... making an accurate diagnosis ... structures of the lung ... #Diagnosis #Radiology ... Perilymphatic #Comparison
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... Nodular LCH: - Sarcoidosis ... central dot. - LIP ... #Radiology #CTChest ... #Differential #Comparison
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
resolution of the HRCT ... or interstitial lung ... predominance: UIP ... #Radiology #Pulmonary ... #CTChest #GGO #
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
responses of the lung ... morphologic findings on HRCT ... findings of NSIP, UIP ... #Diagnosis #Radiology ... #Pulmonary #CTChest