48 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 ... Clinical #Diagnosis #Radiology ... #CTChest #Cystic ... #Comparison #Table
Causes of Solid or Cystic Renal Mass - Differential Diagnosis Algorithm
Solid Renal Mass:
 • Benign <3
Causes of Solid or Cystic ... Differential Diagnosis Algorithm ... >3 cm in size Cystic ... contrast #Solid #Cystic ... Differential #Diagnosis #Algorithm
Low Attenuation pattern 
1. Lymphangiomyomatosis (LAM): uniform cysts in woman of child-bearing age; no history of
(LAM): uniform cysts ... bizarre shaped cysts ... #Clinical #Radiology ... LowAttenuation #Cystic ... Pattern #Comparison #Table
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
multiple thick walled cysts ... (LAM): regular cysts ... #Clinical #Radiology ... LowAttenuation #Cystic ... Pattern #Comparison #Table
High-Res Chest CT Patterns - Differential Diagnosis Framework
Reticular:
 • Septal Thickening: Lymphangitic Carcinoma, Interstitial Edema, Alveolar
High-Res Chest CT ... Antitripsyn Def • Cysts ... Infection, Aspiration, Cystic ... HighRes #Chest #CT ... Diagnosis #pulmonary #radiology
Imaging options for exclusion of PE in pregnant women
The radiation dose required for either V/Q scanning
/Q scanning or CT-PA ... are outlined in Table ... Obstetrics #OBGyn #Radiology ... Imaging #Comparison #Table
Effective radiation dose in adults - Following are comparisons of effective radiation dose in adults with
#PatientInfo #Radiology ... ChestXRay #CXR #CT ... Nuclear #Comparison #Table
Estimated Medical Radiation Doses for 5 Year-Old Child

3-view ankle	0.0015 mSv	1/14th CXRs
2-view chest	0.02 mSv	1 CXRs
Anteroposterior and lateral
50 CXRs Head CT ... 200 CXRs Chest CT ... CXRs Abdomen CT ... #PatientInfo #Radiology ... Nuclear #Comparison #Table
Causes of Cystic Renal Mass - Differential Diagnosis Algorithm
Benign - Anechoic on ultrasound, Well-demarcated on ultrasound/CT,
Differential Diagnosis Algorithm ... on ultrasound/CT ... Non-enhancing with CT ... on ultrasound/CT ... Differential #Diagnosis #Algorithm
Appearance of Liver Lesions on Various Imaging Modalities
 • Computed Tomography (CT) - Arterial Phase, Portal
Computed Tomography (CT ... Ultrasound #Contrast #CT ... #MRI #POCUS #radiology ... diagnosis #comparison #table