Fig. 4From: An unusual case of proximal humeral simple bone cyst in an adult from secondary cystic changeFinal histopathological slide (hematoxylin and eosin stain; scale bar = 200 μm) showing clusters of the “amorphous” pink fibrinoid substance typical of a simple bone cyst, with scattered fibroblasts, fragments of bone tissue, and hemosiderin depositsBack to article page