7 results
Perilymphatic distribution
Perilymphatic nodules are most commonly seen in sarcoidosis.
They also occur in silicosis, coal-worker's pneumoconiosis and
the overlap in differential ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #Differential # ... RadiologyAssistant
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... on HRCT Most of ... disease comes from HRCT ... On HRCT there are ... patterns: reticular, nodular
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
Algorithm for nodular ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #Differential # ... Algorithm #RadiologyAssistant
Reticulocyte Production Index = (Retic %) x (Hct / 45) / Maturation Factor
The maturation factor is
Reticulocyte Production Index ... = (Retic %) x (Hct ... appropriately)- Retic Index ... #differential # ... diagnosis #calculation
On the left a patient with ground glass pattern in a mosaic distribution.
Some lobules are involved
The differential ... diagnosis is hypersensitivity ... centrilobular nodules ... are confluent, HRCT ... HypersenstitivityPneumonitis #RadiologyAssistant
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
diagnosis (Table ... Nodular or irregular ... #Diagnosis #Radiology ... #Pulmonary #HRCT ... #RadiologyAssistant
Bronchiectasis - Summary

What?
• Bronchiectasis is derived from the Greek words bronckos meaning airway and ectasis meaning
centrilobular nodules ... parenchyma Diagnosis ... : • HRCT (high-resolution ... Bronchiectasis #pulmonary #differential ... #diagnosis