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Central distribution is seen in sarcoidosis and cardiogenic pulmonary edema.
Peripheral distribution is mainly seen in cryptogenic
Central distribution ... Peripheral distribution ... Differential #Table #Distribution ... Central #Peripheral #RadiologyAssistant
Central Cord Syndromes
 - Anterior Cord Syndrome
 - Central Cord Syndrome
 - Brown Sequard Syndrome

#CentralCord #Syndromes
Anterior #Central #BrownSequard
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 ... Comparison #Table #RadiologyAssistant
Spinal Cord Injury Syndromes
Complete, Incomplete, Paraplegia, Tetraplegia
Incomplete Spinal Cord Syndromes:
 - Brown Sequard Syndrome
 - Anterior
Injury #Syndromes #BrownSequard
The distribution of nodules shown on HRCT is the most important factor in making an accurate
The distribution ... Perilymphatic distribution ... perilymphatic distribution ... Random distribution ... Comparison #Diagram #RadiologyAssistant
Batwing
A bilateral perihilar distribution of consolidation is also called a Batwing distribution.
The sparing of the periphery
bilateral perihilar distribution ... called a Batwing distribution ... reverse Batwing distribution ... #Differential #RadiologyAssistant
Algorithm for nodular pattern
The algorithm to distinguish perilymphatic, random and centrilobular nodules is the following:
- Look
in number, the distribution ... periplymphatic distribution ... likely a random distribution ... Differential #Algorithm #RadiologyAssistant
Upper lung zone preference is seen in:
- Inhaled particles: pneumoconiosis (silica or coal)
- Smoking related diseases
Differential #Table #Distribution ... #Upper #Lower #RadiologyAssistant
Shock - Differential Diagnosis Algorithm
Warm Extremities
 - Distributive Shock - Low JVP
Extremities - Distributive ... Decompensated Distributive ... Interstitial Fluid Redistribution
Central Distribution, Febrile / Ill:
 - Viral Exanthem 
 - Lyme Disease (erythema migrans) 
Central Distribution,
Central Distribution ... migrans) Central Distribution ... ) Peripheral Distribution ... Peripheral Distribution ... non-ill, flexor distribution