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X-ray of the humerus demonstrates destruction of the bone with cortical erosions and poor transition to normal bone. In this case there are perpendicular spiculations producing a 'hair on end' or 'sun burst' appearance in the centre of the tumour. Laminated appearance occurs towards the edge of the tumour (not prominent in this case) producing an onion-skin appearance. Bone sclerosis is unusual. In this case there is no definite soft tissue mass.