Benign Fibrous Histiocytoma

GENERAL INFORMATION Benign Fibrous Histiocytoma is a rare tumor of mesenchymal origin. First described in 1958 by Dahlin. They are composed of two cell types, namely atypical fibroblasts and histiocytes, arranged in a storiform pattern. Lipid-filled cells may be...

Aneurysmal Bone Cyst (ABC)

General Information An aneurysmal bone cyst (ABC) is a benign bone tumor or neoplasm. It consists of a blood-filled multiloculated cavity with a thick fibrous lining. The lining is composed of mesenchymal spindle cells, capillaries, multinucleated giant cells, and...

Adamantinoma

General Information Primary intraosseous epithelial neoplasm Low-grade malignancy and predilection for tibia Associated with intraosseous fibro-osseous proliferation (osteofibrous dysplasia) Classic vs. Differentiated Classic – grow beyond cortex, older patients,...