- the antero-lateral aspect of proximal humeral metadiaphysis shows a well-defined lobulated fairly fusiform predominantly cortical expansile lytic mass lesion, with sclerotic margin and narrow zone of transition. The lesion causes medullary encroachment.
- the lesion shows heterogenous predominantly hypointense T1 and intermediate T2 signal with foci of hypo- and hyperintensities. No evident fluid / fluid levels seen. No evident pathological fracture.
- the lesion measures about 5 X 1.8 X 1.8 cm in its maximal craniocaudal and axial cross-sectional dimensions, respectively. No definite cortical destruction or pathological fracture.
- the lesion is seen indenting the undersurface of the deltoid muscle with thin rim of fluid signal intervening.