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Osteoclastoma Olecranon LSBU

Radiology case 423-3182 Clinical presentation: Female aged 49 years, sudden onset of pain in the left elbow, after a fall.
There is a pathological fracture of the olecranon of the left ulna, through a lytic lesion in the bone. The cyst-like lesion lies immediately adjacent to the elbow joint and has a well-defined margin. The endosteal margin has a narrow zone of transition between normal and abnormal bone. There is no indication of a lamellar periosteal reaction. The skeleton is mature. Anterior soft tissue density is probably an elbow joint effusion.

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  • Chris Oliver