12 results
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
pattern The algorithm ... in number, the distribution ... periplymphatic distribution ... likely a random distribution ... #Pulmonary #HRCT
Algorithm for Diagnosis of Diffuse Cystic Lung Disease (DCLD)
Round, smooth cysts with normal lung parenchyma in
distribution ... basilar predominant distribution ... zone predominant distribution ... Diffuse distribution ... LCDD, SS Cyst pattern
The distribution of nodules shown on HRCT is the most important factor in making an accurate
The distribution ... structures of the lung ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #Distribution #
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Upper lung zone ... edema #Diagnosis #Radiology ... #Pulmonary #HRCT ... #Differential #Table ... #Distribution #
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
perilymphatic distribution ... perilymphatic distribution ... Clinical #Diagnosis #Radiology ... #Pulmonary #CTChest ... Differential #Comparison #Table
Differential diagnosis
The table summarizes the most common diseases, that present with consolidation.
Chronic diseases are indicated in
diagnosis The table ... to look at the pattern ... of distribution ... #Diagnosis #Radiology ... #Pulmonary #CXR
Lymphomas and Lymphoproliferative Disorders - Differential Diagnosis Algorithm
Hodgkin Lymphoma ~40% - Characteristic For Reed-Sternberg (RS) Cells
Differential Diagnosis Algorithm ... - Bimodal Age Distribution ... lymphadenopathy more diffuse ... involvement, irregular pattern ... Lymphoproliferative #Disorders #Classification
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
or interstitial lung ... in ground glass pattern ... Centrilobular distribution ... bronchiolitis #Diagnosis #Radiology ... #Pulmonary #CTChest
On the left a patient with ground glass pattern in a mosaic distribution.
The clue here is
with ground glass pattern ... in a mosaic distribution ... enlargement of pulmonary ... hyperperfused lung ... #Clinical #Radiology
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
CXR: Peripheral distribution ... consolidation and GG pattern ... eosinophilia pneumonia, Pulmonary ... lymphoma, Diffuse ... Pneumonia #COP #BOOP #pulmonary