Changing Residents’ Perspective on Bone Tumors: From Intimidating to Inviting
Diagnosis of Bone Tumors
Step 1: Evaluate morphology
Is it non-aggressive or aggressive?
• Zone of transition
• Pattern of bone destruction
What type of matrix is it producing?
• Osteoid, Chondroid, Fibrous
Step 2: What’s the patient’s age?
• Helps establish a differential when combined with morphology
Step 3: Additional features helping to distinguish aggressiveness of lesion
• Type of periosteal reaction
• Cortical destruction or soft tissue involvement indicates a more aggressive process
Step 4: Where is the tumor located?
• Characteristic locations can further narrow the differential
• Central, eccentric
• Diaphyseal, metaphyseal, epiphyseal