Talk:Bone

Aneurysmal bone cyst

Microscopic description

The sections show cartilage, bone and osteoid with variable mineralization surrounded by fibroblasts, hemosiderin-laden macrophages, and multi-nucleated giant-cells with peripheral clustering of nuclei. Hemosiderin-laden macrophages are seen focally. There is no nuclear atypia or mitotic activity. There is no malignant appearing osteoid.

Final diagnosis

Humerous, right proximal, excision - Aneurysmal bone cyst.