162 results
Differential diagnosis of Langerhans cell histiocytosis.
Nodular LCH:
- Sarcoidosis: perilymphatic distribution.
- Metastases: random distribution.
Cystic LCH:
- LAM: round
Differential diagnosis ... Cystic LCH: - LAM ... central dot. - LIP #Clinical ... #Diagnosis #Radiology ... Comparison #Table #RadiologyAssistant
On the left three different patients with lung cysts.
From left to right: Lymphangiomyomatosis, LIP and Langerhans
patients with lung cysts ... #Clinical #Diagnosis ... #Radiology #CTChest ... #Cystic #Comparison ... Histiocytosis #RadiologyAssistant
Diagram of different types of bone tumors that can occur around the knee on XRay -
occur around the knee ... degenerative subchondral cyst ... @docskalski #Knee ... Diagnosis #Bony ... #Differential #Radiology
Diagram of different types of bone tumors that can occur around the knee on XRay
Age <
occur around the knee ... bone cyst • Osteoid ... @docskalski #Knee ... #Differential #Diagnosis ... #Radiology #XRay
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 ... Comparison #Table #RadiologyAssistant
Diagram of different types of bone tumors that can occur around the knee on XRay -
occur around the knee ... cyst • Aneurysmal ... bone cyst • Osteoid ... Diagnosis #Bony ... #Differential #Radiology
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 ... Comparison #Table #RadiologyAssistant
Osteoarthritis (OA): X-ray features 
 - Joint space narrowing (least specific)
 - Subchondral Cysts (pockets of
- Subchondral Cysts ... under the areas of bone-bone ... Osteoarthritis #OA #Xray #radiology ... #diagnosis #findings ... #Clinical #knee
Septic emboli
On a follow up CXR only a small lungcyst is seen. #Clinical #Radiology #CXR #Lateral
#Clinical #Radiology ... #CXR #Lateral #Cyst ... #RadiologyAssistant
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
- Differential Diagnosis ... - Aneurysmal bone ... cyst - Osteochondroma ... #differential #diagnosis ... #msk #physicalexam