Fig. 3From: Progressive osseous heteroplasia in a 5-year-old boy with a novel mutation in exon 2 of GNAS: a case presentation and literature reviewRadiographs of the right keen. Lateral and anteroposterior radiograph of the legs shows ossification (arrows) in the soft connective tissues from the dermis down through the muscle to the proximal tibi (a, b). Axial CT shows ossification has fused with the tibia (c)Back to article page