Arthroscopic Excision of Intra-Articular Osteoid Osteoma at the Elbow

Figure 5

Histologic findings. Incompletely mineralized trabeculae rimmed by scattered osteoclasts (blue arrowhead) and irregularly shaped osteoblasts (yellow arrowhead). The intervening stroma (asterisk) is loose and fibrovascular (Hematoxylin-Eosin stain, bar represents 100 μm).