A 10 year old patient presented with pain,swelling in the thigh region and,fever.X ray shows the following features.What can be the most posssible diagnosis?
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Correct Answer » B
Explanation
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Ans:B. Ewing’s Sarcoma.
Image shows:Ewing sarcoma of femur. Frontal radiograph and lateral radiographs of the femur
demonstrate mottled, osteolytic lesion (blue circle) with poorly marginated edges in the diaphysis of the bone. There is sunburst periosteal reaction (red circle) and lamellated periosteal reaction (white arrows).
EWING’S SARCOMA
Common manifestations on conventional radiography include:
- Poorly marginated, lytic, destructive lesion
- Permeative (small holes) or moth-eaten (mottled) appearance
- Soft tissue mass or infiltration is common
- Periosteal reaction is common
- Lamellated – onion-skinning due to successive layers of periosteal development
- Sunburst or spiculated – hair-on-end appearance when new bone is laid down perpendicular to cortex along Sharpey’s fibers
- Codman’s triangle – formed between elevated periosteum with central destruction of cortex.
DIFFERENTIAL DIAGNOSIS OF COMMON BONE TUMORS
