11 results
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
pattern The algorithm ... and centrilobular ... the nodules are diffuse ... Radiology #Pulmonary #HRCT ... #CTChest #NodularPattern
The distribution of nodules shown on HRCT is the most important factor in making an accurate
nodules shown on HRCT ... in the nodular pattern ... In certain diseases ... #NodularPattern ... #Nodular #Pattern
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
Nodular pattern ... pneumonitis: ill defined centrilobular ... Miliary TB: random ... Clinical #Radiology #HRCT ... CTChest #Nodular #Pattern
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
the left some diseases ... with a nodular pattern ... Miliary TB: random ... CTChest #Nodular #Pattern ... #NodularPattern
Basic Interpretation
A structured approach to interpretation of HRCT involves the following questions:
What is the dominant HR-pattern:
reticular
nodular
high
interpretation of HRCT ... the dominant HR-pattern ... secondary lobule (centrilobular ... perilymphatic or random ... Interpretation #Algorithm
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
resolution of the HRCT ... result of air space disease ... interstitial lung disease ... in ground glass pattern ... , NSIP, DIP. - Centrilobular
On the left a patient with ground glass pattern in a mosaic distribution.
Some lobules are involved
with ground glass pattern ... thromboembolic disease ... presents with centrilobular ... are confluent, HRCT ... shows diffuse ground
Metastases
Metastases are the most common cause of multiple pulmonary masses.
Usually they vary in size and are
HRCT will demonstrate ... the random distribution ... unlike other diseases ... perilymphatic or centrilobular ... subsequent spread of disease
Hair Loss (Alopecia) - General (Diffuse and Focal) Differential Diagnosis Algorithm

DIFFUSE
Scarring - Irreversible-biopsy required
 • Lupus
Differential Diagnosis Algorithm ... DIFFUSE Scarring ... planopilaris Pattern ... Secondary to Skin Disease ... Differential #Diagnosis #Algorithm
Acute interstitial pneumonia (AIP, earlier named Hamman Rich Pneumonitis) is a rare idiopathic lung disease characterized
idiopathic lung disease ... characterized by diffuse ... The histologic pattern ... aswell as the HRCT ... are diffuse or