8 results
Differential diagnosis on HRCT
Most of our knowledge about imaging findings in interstitial lung disease comes from
Differential diagnosis ... on HRCT Most of ... reticular, nodular ... low attenuation (table ... #Differential #
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
Algorithm for nodular ... pattern The algorithm ... the nodules are diffuse ... Radiology #Pulmonary #HRCT ... #Nodules #Differential
Hair Loss (Alopecia) - General (Diffuse and Focal) Differential Diagnosis Algorithm

DIFFUSE
Scarring - Irreversible-biopsy required
 • Lupus
and Focal) Differential ... Diagnosis Algorithm ... planopilaris Pattern ... #dermatology #Differential ... #Diagnosis #Algorithm
Lymphomas and Lymphoproliferative Disorders - Differential Diagnosis Algorithm
Hodgkin Lymphoma ~40% - Characteristic For Reed-Sternberg (RS) Cells
Lymphoproliferative Disorders - Differential ... Diagnosis Algorithm ... lymphadenopathy more diffuse ... involvement, irregular pattern ... #algorithm
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 ... : reticular nodular ... lymphadenopathy, traction ... Interpretation #Algorithm
Cryptogenic Organizing Pneumonia (COP)

Cryptogenic Organizing Pneumonia Overview:
 • Idiopathic form of organizing pneumonia
 • formerly BOOP
consolidation and GG pattern ... irregular lines, nodular ... , cavities • HRCT ... Pulmonary lymphoma, Diffuse ... ILD #diagnosis #management
Septal thickening
Thickening of the lung interstitium by fluid, fibrous tissue, or infiltration by cells results in
cells results in a pattern ... has a limited differential ... diagnosis (Table ... Nodular or irregular ... Radiology #Pulmonary #HRCT
Amiodarone Induced Lung Toxicity Summary

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

How?  Possible
• Patchy or diffuse ... • Reticular + Nodular ... opacities; traction ... confirmatory findings on HRCT ... Pulmonary #diagnosis #management