Diagram of different types of bone tumors that can occur around the knee on XRay - Age > 30 years • Multiple Myeloma - punched out lesions. endostea/ scalloping • Healed NOF • Giant cell tumor • Chronic osteomyelitis - with sequestrum, cloaca, and involucrum • Paget disease - blastic or mixed lytic-blastic phase • Paget disease - lytic phase with flame/blade of grass sign • Parosteal Osteosarcoma • Aggressive lesion - lytic metastasis or osteomyelitis • Lymphoma or blastic metastatic lesion • Geode (AKA degenerative subchondral cyst, intraosseous ganglion) • Enostosis/bone island • Stress fracture • Chondrosarcoma • Stress fracture or intracortical Brodie abscess Dr. Matt Skalski @docskalski #Knee #Bone #Tumors #Diagnosis #Bony #Differential #Radiology #XRay #msk #lesions #adult
