nonossifying fibroma

Nonossifying fibroma is a benign, lytic lesion of fibrous origin most often observed in the metaphyseal region of the long bones in children and adolescents. It is frequently asymptomatic and is often characterized by a history of spontaneous resolution.

Cytogenetics

translocation (1;4)(p31;q34) (#12699892#)
del(4)(p14) (#8330278#)