MRI OF FOCAL FIBROCARTILAGINOUS DYSPLASIA

Focal fibrocartilaginous dysplasia (FFCD) is an uncommon, benign condi tion associated with unilateral tibia vara in young children. The clin ical, pathologic, plain film, and magnetic resonance imaging (MRI) fin dings of FFCD were reviewed in two children. MRI findings were virtual ly identical in both patients and correlated well with the plain film and pathologic findings. We believe that FFCD has a typical MRI appear ance. However, FFCD also has characteristic plain film findings, and w hen these are present, MRI is indicated for only an atypical clinical presentation.