Fraud Blocker Pediatric Board Review with Free Pediatric Board Review Questions and Mnemonics

ANSWER for, “What’s The Diagnosis In This Child With Lower Extremity Pain?”

To see the question, CLICK HERE.

ANSWERS:

1. Can you name the disorder?
The disorder shown in these images is EWING'S SARCOMA. Ewing’s Sarcoma is a tumor of the long bones. A long bone is any bone that’s longer than it is wide. During your pediatric board review and on the pediatric boards, look for questions associated with X-rays of the humerus, femur, tibia or fibula.
 
EDUCATIONAL PEARLS FOR YOUR PEDIATRIC BOARD REVIEW:
  • Unique to this bone tumor is the possibility of a SOFT TISSUE COMPONENT
  • Lesions are painful, so a description of “exercise intolerance” could be from an inability to run
  • Shortness of breath or “decreased exercise tolerance” may be due to LUNG METASTASES!
 
2. Can you name the classic findings shown in the images?
  • WHITE ARROW: The white arrow on the image points to ONION SKIN lesions. Look for what looks like a thin extra layer of bone fitting over the bone like a glove. You can also imagine the skin of an onion laying over the bone. If you see this finding on the board, you’re done! Pick Ewing’s Sarcoma and move on.
  • RED CIRCLE: The red circle shows a SUNBURST pattern.
  • BLUE CIRCLE: The blue circle shows an OSTEOLYTIC lesion.

Ewing's Sarcoma with classic findings of a SUNBURST PATTERN and an OSTEOLYTIC LESION

Ashish Goyal, M.D.
 

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