8 results
Causes of Knee Effusions - Differential Diagnosis Framework

Knee Effusion Red Flags:
1. Fever/Chills/Joint pain/Night sweats/Weight loss
	- DDX:
		-
- Differential ... Intra-articulation fracture ... - Patellar dislocation ... - Aneurysmal bone ... diagnosis #msk #
Transient Patellar Dislocation - MSK Radiology
Imaging Findings:
 • Hyperintense marrow edema of the anterolateral femoral condyle
Dislocation - MSK ... consistent with bone ... Differential diagnosis ... : • Patella fracture ... #mri #clinical
Cortical Desmoid - MSK Radiology
Imaging Findings:
 • Circumscribed, small cortically based Tl -hypointense and T 2-hyperintense
- MSK Radiology ... - Bone scans ... Differential diagnosis ... Desmoid #clinical #mri ... Radiology #diagnosis #msk
Bone Deformity / Limp - Differential Diagnosis Algorithm 
Infection
 • Septic Arthritis
 • Cortical Hypertrophy
 •
Bone Deformity / ... Limp - Differential ... Arthritis • Cortical ... Legg-Calve-Perthes Disease Knee ... Deformity #Limp #MSK
Nonossifying Fibroma with Pathologic Fracture - MSK Radiology
Imaging Findings:
 • Cortically based, geographic, lucent lesion with
- MSK Radiology ... Differential diagnosis ... : • Simple bone ... • Aneurysmal bone ... Radiology #diagnosis #msk
Osteochondral Lesion of the Talus - MSK Radiology
Imaging Findings:
 • Typical location of the osteochondral defect
of the Talus - MSK ... fragment and parent bone ... cartilage and cortical ... Differential diagnosis ... Insufficiency Fracture
Subchondral Insufficiency Fracture
Imaging Findings:
 • Circle demarcating the region of edema within the medial femoral condyle.
the subchondral bone ... Osteonecrosis of the Knee ... favored because lesion ... Differential diagnosis ... #clinical #mri
Tenosynovitis of the peroneal tendons due to hypertrophic peroneal tubercle
Imaging Findings:
 • Large volume ofT2-hyperintense fluid
Can result in bone ... Differential diagnosis ... osteochondral lesions ... tubercle #clinical #mri ... Radiology #diagnosis #msk