Figure 3

Pseudoachondroplasia in a four-year-old boy, who presented with genu vara and short stature (a-d). a) Pelvis shows small and round capital femoral epiphyses with an underdeveloped and irregularly shaped lower portion of the ilium that results in horizontal appearance of the acetabular roofs. b) The lower extremity radiograph shows genu vara with wide and strikingly irregular distal femoral metaphases; epiphyses at the knees that are dysplastic and triangular in shape in the femoral ends that partly invaginated into the cupping of the femoral metaphases; dysplastic metaphyseal change is also noted in the distal tibiae. c) The spine radiograph shows mild platyspondyly and considerable irregularity of the upper and lower endplates of the vertebral bodies; mid-central tongue in pseudoachondroplasia associated with apophyseal dysplasia of the vertebral bodies along the upper and lower endplates, resulting in biconvex configuration. d) Short metacarpals with metaphyseal cupping and irregularity and small, round epiphyses; short and stubby phalangeal bones with mild metaphyseal cupping; delayed ossification of the small and irregular carpal bones with apparent metaphyseal widening and irregularity at the distal radius and ulna.