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Age / Sex : 4 / M
4/M
C.C.: Pain in left tibia (Click to enlarge)
1) What is your impression?
2) A first impression and three or less differential diagnoses are acceptable.
Courtesy : In Sup Song, MD, Chung-Ang University Hospital
Diagnosis: ossifying fibroma (osteofibrous dysplasia)
Discussion
Findings:
1) Radiologic Findings: - Type IA osteolytic lesion in left midtibia - The lesion is located eccentrically - Ground glass matrix ossification is seen - Pathologic fracture is seen
Differential Diagnosis:
Ossifying fibroma, Fibrous dysplasia, Adamantinoma
Diagnosis: Ossifying fibroma (osteofibrous dysplasia)
Discussion:
This patient age could rule out the possibility of adamantinoma. Fibrous dysplasia is centrally located while the adamantinoma is eccentrically located. Fibrous dysplasia rarely involve the tibia.
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