8 results
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... about imaging findings ... low attenuation (table ... Diagnosis #Radiology #Pulmonary ... #Pattern #Differential
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
indicates unknown cause ... listed in the table ... on HRCT and histology ... Diagnosis #Radiology #Pulmonary ... #CTChest #Idiopathic
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
the dominant HR-pattern ... there additional findings ... Diagnosis #Radiology #Pulmonary ... #HRCT #CTChest ... #Algorithm #ILD
Lobar atelectasis or lobar collaps is an important finding on a chest x-ray and has a
has a limited differential ... The most common causes ... or astmathics (ABPA ... Diagnosis #Radiology #CXR ... Lobar #Collapse #Patterns
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
Chronic inflammation causes ... Most Common Causes ... Hypersensitivity: ABPA ... Diagnosis: • HRCT ... #differential #
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
cells results in a pattern ... a predominant finding ... diagnosis (Table ... in interstitial pulmonary ... #HRCT #CTChest
On the left a smoker with RB-ILD with subtle HRCT-findings.
The dominant pattern is ground glass opacification.
Additional
RB-ILD with subtle HRCT-findings ... The dominant pattern ... there is a broad differential ... mandatory for the interpretion ... Clinical #Radiology #CTChest
Authors: Mark M. Ramzy, DO, EMT-P (@MarkRamzyDO, EM Resident Physician, Drexel University, Department of Emergency Medicine)
physical exam findings ... radiograph pattern ... defaulting to a normal interpretation ... Most commonly caused ... #Radiology #CTChest