37 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
central dot. - LIP #Clinical ... #Diagnosis #Radiology ... #CTChest #Cystic ... #Cysts #Differential ... #Comparison #Table
Diagram of different types of bone tumors that can occur around the knee on XRay -
bone cyst • Osteoid ... #Differential # ... Radiology #XRay ... #peds #pediatrics ... #msk #lesions #
Diagram of different types of bone tumors that can occur around the knee on XRay
Age <
cyst • Aneurysmal ... bone cyst • Osteoid ... #Differential # ... Diagnosis #Radiology ... #XRay #MSK #pediatrics
Diagram of different types of bone tumors that can occur around the knee on XRay -
different types of bone ... ) • Enostosis/bone ... #Differential # ... Radiology #XRay ... #msk #lesions #adult
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 ... #HRCT #CTChest ... Pattern #Comparison #Table
Low Attenuation pattern (2) 
1. Centrilobular emphysema: low attenuation areas without walls. Notice the centrilobular artery
(LAM): regular cysts ... #Clinical #Radiology ... #HRCT #CTChest ... LowAttenuation #Cystic ... Pattern #Comparison #Table
Primary Bone Tumors - Differential Diagnosis Algorithm 

Metastatic - Most common tumour in adults
 - Breast
Primary Bone Tumors ... - Differential ... Cyst Malignant ... Tumours #MSK #Differential ... Causes #Oncology #Radiology
Bone Tumor Location within the Skeleton

Epiphysis: 
Only a few lesions are located in the epiphysis, so
included in the differential ... cyst must be added ... to the differential ... Diaphysis #Epiphysis #Radiology ... #MSK #Differential
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
99m radionuclide bone ... American Academy of Pediatrics ... #PatientInfo #Radiology ... Nuclear #Comparison #Table ... #Study #Peds #Pediatrics
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 ... #Clinical #Radiology ... #HRCT #CTChest ... Pattern #Comparison #Table