26 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Cystic LCH: - LAM ... : round cysts, evenly ... emphysema: no walls, central ... #Comparison #Table ... #RadiologyAssistant
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
(LAM): uniform cysts ... bizarre shaped cysts ... LowAttenuation #Cystic ... #Pattern #Comparison ... #Table #RadiologyAssistant
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
multiple thick walled cysts ... (LAM): regular cysts ... LowAttenuation #Cystic ... #Pattern #Comparison ... #Table #RadiologyAssistant
Central distribution is seen in sarcoidosis and cardiogenic pulmonary edema.
Peripheral distribution is mainly seen in cryptogenic
Central distribution ... and cardiogenic pulmonary ... #Differential #Table ... #Distribution #Central ... #Peripheral #RadiologyAssistant
Clues to Differential Diagnosis of Central Cyanosis: Onset of cyanosis, Clubbing, Secondary erythrocytosis, Auscultation, X-ray, Echocardiography,
Differential Diagnosis of Central ... heart defect - Pulmonary ... diseases - Pulmonary ... Cardiology #Causes #Table ... #Comparison
The fourth pattern includes abnormalities that result in decreased lung attenuation or air-filled lesions.
These include:
- Emphysema
-
Emphysema - Lung cysts ... Diagnosis #Radiology #Pulmonary ... Differential #Diagram #Comparison ... TractionBronchiectasis #Cysts ... Emphysema #SignetRing #RadiologyAssistant
Peripheral Vertigo
Time course and symptoms characteristics are very helpful in distinguishing between causes of peripheral vertigo.
Benign
Time course and symptoms ... hypoacusia or tinnitus ... differential #diagnosis #comparison ... #table
Nodular pattern(2)
1. Sarcoidosis: nodules with perilymphatic distribution, along fissures, adenopathy.
2. TB: Tree-in-bud appearance in a patient
before the typical cysts ... Nodular #Pattern #Comparison ... #Table #RadiologyAssistant
On the left some diseases with a nodular pattern.
1. Hypersensitivity pneumonitis: ill defined centrilobular nodules.
2. Miliary
before the typical cysts ... Diagnosis #Radiology #Pulmonary ... #Differential #Comparison ... #Table #RadiologyAssistant
Differentiating Features Between Central and Peripheral Cyanosis

Mechanism - Arterial destauration
Sites - Skin, mucous membrane of oral
Features Between Central ... Oxygen therapy - Pulmonary ... #Cyanosis #Central ... #Peripheral #Comparison ... #Signs #Symptoms