Micrograph of a<unk>  (left of image). H&E stain.<unk> rs consist of fibrous tissue, woven bone and supporting vasculature, but no matrix. The osteoclasts consume the trabecular bone that osteoblasts lay down and this front of reparative bone deposition followed by additional resorption can expand beyond the usual shape of the bone, involving the periosteum thus causing bone pain. The characteristic<unk>  coloration results from hemosiderin deposition into the osteolytic cysts. Hemosiderin deposition is not a distinctive feature of<unk> s; it may also be seen in giant cell<unk> s of the bone.<unk> s may be rarely associated with ectopic parathyroid adenomas or end stage renal osteodystrophy.
Brown tumor
Mantleoma
Neuroma
Ameloblastoma
Hemangioblastoma
Pineocytoma
Hamartoma
Medulloblastoma