Figure 1. . Characteristic features of FOP.

Figure 1.

Characteristic features of FOP. A photograph (A) and radiograph (B) of the feet in an affected boy age 15 years with classic FOP show short, malformed halluces with a single, dysplastic phalanx in each great toe. A photograph of his back (C) and a radiograph of his lumbar spine (D) reveal confluent areas (plates) of heterotopic bone (D, arrows).

Reproduced with permission from Kaplan et al [2009]

From: Fibrodysplasia Ossificans Progressiva

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