When Hitting Your Funny Bone Isn’t Humerus: A Rare Cause Of Elbow Pain In A Pediatric Patient - Page #3
 

Lab Studies:
None

Other Studies:
MRI of the right elbow (without contrast):
1. Large destructive lesion in the distal humeral metaphysis with cortical destruction and periosteal reaction, concerning for osteomyelitis with developing periosteal abscess formation versus neoplastic process.
2. Large reactive joint effusion.
3. Reactive edema in the distal triceps and brachialis musculature.
Case Photo #3
Case Photo #4

CT-guided core needle biopsy:
Histology: Eosinophilic infiltrate with scattered histiocytes and epithelioid cells exhibiting nuclear grooves.
Immunohistochemistry: Positive for CD1a, S100, and CD68.
PET Scan:
Single lesion noted in the right humerus. No signs of multi-system disease.

Consultations:
Orthopedic Surgery, Orthopedic Oncology

Click here to continue. Challenge yourself by writing down a revised, working diagnosis before moving to the next slide.


NOTE: For more information, please contact the AMSSM, 4000 W. 114th Street, Suite 100, Leawood, KS 66211 (913) 327-1415.
 

© The American Medical Society for Sports Medicine
4000 W. 114th Street, Suite 100
Leawood, KS 66211
Phone: 913.327.1415


Website created by the computer geek