“ Also known as an osteoclastoma, they are seen in both primary (more commonly) and secondary hyperparathyroidism. The brown tumour is a foc...
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Also known as an osteoclastoma, they are seen in both primary (more commonly) and secondary hyperparathyroidism. The brown tumour is a focus of bone resorption replaced by vascular fibrous tissue. It mimics metastases and myeloma.
PLAIN FILM
• Well-defined, often solitary cortical lesion.
• Lytic and expansile.
• Commonly found in the jaw, rib or pelvis.
• No periosteal reaction.
• After treatment, brown tumours may disappear, be persistently lucent or become sclerotic/calcified.
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