218 results
The distribution of nodules shown on HRCT is the most important factor in making an accurate
perilymphatic, centrilobular ... Centrilobular distribution ... limited to the centrilobular ... random nodules, centrilobular ... #Random #Centrilobular
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
pneumonitis: ill defined centrilobular ... perilymphatic distribution ... Hypersensitivity pneumonitis: centrilobular ... perilymphatic distribution ... bronchiolitis: ill defined centrilobular
Lung Nodules - Differential Diagnosis by Distribution
 • Centrilobular: Hypersensitivity Pneumonitis, RB-ILD, Pneumoconiosis, Infectious Bronchiolitis, Vasculitis,
Differential Diagnosis by Distribution ... • Centrilobular ... Differential #Diagnosis #Distribution
Nodular pattern
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary TB: random nodules
3. Sarcoidosis: nodules with perilymphatic
pneumonitis: ill defined centrilobular ... perilymphatic distribution ... Hypersensitivity pneumonitis: centrilobular
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
perilymphatic distribution ... Metastases: random distribution ... cysts, evenly distribution ... ring sign'. - Centrilobular
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
perilymphatic, random and centrilobular ... in number, the distribution ... is likely centrilobular ... periplymphatic distribution ... likely a random distribution
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
related diseases (centrilobular ... Differential #Table #Distribution
Metastases
Metastases are the most common cause of multiple pulmonary masses.
Usually they vary in size and are
demonstrate the random distribution ... perilymphatic or centrilobular ... distribution.
Ground-glass opacity
Ground-glass opacity (GGO) represents:
- Filling of the alveolar spaces with pus, edema, hemorrhage, inflammation or
. - Centrilobular ... distribution: Hypersensitivity
On the left a patient with ground glass pattern in a mosaic distribution.
Some lobules are involved
pattern in a mosaic distribution ... presents with centrilobular