Osteitis fibrosa cystica
Cystic changes and cortical alterations in bones of hands of patient with functioning parathyroid adenoma.Bone changes in hyperparathyroidism. There is marked resorption of bone trabeculae and clustering of osteoclasts.
Osteitis fibrosa cystica
The center of the "brown tumor" contains osteoclasts and mononuclear cells and fibroblasts with focal hemorrhages. The hemosiderin from the hemorrhage produces the grossly brown color. Such lesions are nowadays uncommon because hyperparathyroidism is treated before such lesions develop.
Osteitis fibrosa cystica