Osteochondroma - pelvis

Case contributed by Frank Gaillard
Diagnosis certain

Patient Data

Age: 8 years
Gender: Male
x-ray

Partially obscured by bowel gas is an ossified lesion projecting over the right sacroiliac joint superiorly. 

ct

CT demonstrates the mass to arise from, and be continuous with, the posterior surface of the iliac bone. No convincing soft tissue mass. 

mri

A single axial T1 image confirms the mass to have normal appearing marrow continuous with the medullary cavity of the pelvis. 

Case Discussion

Typical appearances of an osteochondroma of the pelvis. 

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