15 results
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... reticular, nodular ... low attenuation (table ... #Diagnosis #Radiology ... #Pulmonary #CXR
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
The fourth pattern ... on the basis of HRCT ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... #Differential #Diagram
The distribution of nodules shown on HRCT is the most important factor in making an accurate
pattern. ... structures of the lung ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... Perilymphatic #Comparison #Diagram
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
indicates unknown cause ... listed in the table ... morphologic findings on HRCT ... #Diagnosis #Radiology ... #Pulmonary #CTChest
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
of pulmonary fibrosis ... A HRCT is needed ... to confirm the diagnosis ... at the lung bases ... #Clinical #Radiology
Miliary Pattern - Chest Radiology
 • Miliary opacities are scattered, small (1 -4 mm) nodules
 •
Miliary Pattern ... small (1 -4 mm) nodules ... throughout the lungs ... #pulmonary #CXR ... #clinical #CT
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
Unknown • 6-7 cases ... consolidation and GG pattern ... irregular lines, nodular ... , cavities • HRCT ... #ILD #diagnosis
Tree-in-Bud Sign on Chest CT
 • Multiple centrilobular nodules arranged in a linear branching pattern.
 •
Sign on Chest CT ... centrilobular nodules ... linear branching pattern ... #Lung #Pulmonary ... #diagnosis #radiology
Pulmonary Renal Syndromes - OnePager Summary
Autoimmune ANCA vasculitis (AAV): GPA (granulomatous with polyangiitis), EGPA (eosinophilic granulomatosis
nodules, asthma ... Other tests: • CT ... Goodpasture's cause ... sparing of the lung ... • IF staining patterns
Progressive Massive Fibrosis aka Complicated Silicosis.
Silicosis is a fibrotic lung disease caused by inhalation of crystalline
is a fibrotic lung ... disease caused ... coalescence of the nodules ... Calcification (seen in CT ... typical eggshell pattern