13 results
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... about imaging findings ... detected on a chest ... seen and in many cases ... #Pulmonary #CXR
The idiopathic interstitial pneumonias (IIPs) comprise a heterogenous group of disorders. 
They represent fundamental responses of
indicates unknown cause ... on HRCT and histology ... #Diagnosis #Radiology ... #Pulmonary #CTChest ... #ILD #Findings
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
Unknown • 6-7 cases ... - Imaging: • CXR ... , cavities • HRCT ... - Diagnosis: ... #ILD #diagnosis
Here are the most common examples of these four patterns on a chest x-ray (click image
patterns on a chest ... mass - Solitary Pulmonary ... Nodule - Multiple Masses ... Atelectasis #Diagnosis ... Clinical #Radiology #CXR
Causes of Chronic Dyspnea - Differential Diagnosis Algorithm
Pericardial
 • Effusion
 • Cardiac Tamponade*
 • Constriction
Myocardial
 •
Causes of Chronic ... Chest Wall Abnormalities ... Alveoli • Pneumonia ... Interstitium ... • ILD • CHF
Based on the images alone, it is usually not possible to determine the cause of the
findings. ... between these chest ... this is nodular interstitial ... #Clinical #Diagnosis ... #Radiology #CXR
Amiodarone Induced Lung Toxicity Summary

Who?
• 5% of patients
• Dose ≥ 400 mg per day

How?  Possible
Pleuritic chest ... Characteristic finding ... Exclude other causes ... Exclusion of other ILDs ... on HRCT is highly
UIP
UIP is a histologic pattern of pulmonary fibrosis.
On a chest X-ray UIP manifests as a reticular
histologic pattern of pulmonary ... On a chest X-ray ... A HRCT is needed ... to confirm the diagnosis ... UIP #Reticular #Interstitial
Acute interstitial pneumonia (AIP, earlier named Hamman Rich Pneumonitis) is a rare idiopathic lung disease characterized
Acute interstitial ... pneumonia (AIP, ... findings in AIP ... suggestive of the diagnosis ... AcuteInterstitialPneumonia #ILD
Palpable Skin Crepitus on Physical Exam

Notice these air bubbles under the skin. An 86-year-old woman with
An 86-year-old woman ... been treated for pneumonia ... and spaces can cause ... and perivascular interstitium ... the most common finding