Nonossifying fibroma

The ossifying fibroma not (Synonyms: fibrous cortical defect, benign histiocytic fibroma, fibrous metaphyseal defect) is a usually a pea to a chestnut large connective-tissue tumor of the bone and the most common benign bone tumor in children and adolescents. Probably it is more of a developmental disorder of bone growth as a true neoplasm

Radiographically, the tumor usually presents as a versatile round, grape-like sharp edge whitening with girlandenartigem pattern represents ( polycyclic, with garland- shaped marginal sclerosis).

It is assumed that the tumor-like lesions are the primary ossification resolution in the form of sharply defined bone tissue herd. These cookers are made of collagen-rich connective tissue, fibroblasts, histiocytes and osteoclasts. They go out of the growth plate and in adjacent areas of the metaphysis and diaphysis of long bones, especially of the legs, to be found.

As no clinical symptoms are present, it is usually an incidental finding and also no need for therapy, as a spontaneous remission with replacement of the lesions can be expected by bone tissue.