MRI - MRI OF RIGHT UPPER ARM
Axial T2
Axial PD fat sat
Coronal PD fat sat
Sagittal PD fat sat
MRI of upper arm shows a well defined T2 and PDFS hyperintense lesion within the anterior cortex of upper humerus measuring ~10 x 6 mm with mild humeral marrow edema and mild adjacent anterior periosseous soft tissue edema. There is tiny T2 and T1 hypointense punctate focus in the centre of lesion- representing ossified focus. No significant periosteal reaction noted.
These features are consistent with intracortical osteoid osteoma.