Fibrodysplasia ossificans progressiva mimicking as fibroma with hypospadias

Fibrodysplasia ossificans progressiva (FOP) is a rare disease characterised by recurrent painful episodes of swelling in soft tissue and the occurrence of tumours in subcutaneous and muscular tissues. It causes severe disability and has an autosomal dominant penetration. We report a child with diffuse heterotopic ossification with characteristic hallux valgus of both the toes who was diagnosed inadvertently as multiple cutaneous fibromatosis before presenting to us. A very rare genetic syndrome was characterised on the basis of clinical manifestations and diagnosed in a peripheral tertiary institute. A diffuse soft-tissue enlargement is not always cancer and calcification therein may be FOP