RESUMO
INTRODUCTION: Fibrodysplasia ossificans progressiva (FOP) is a rare genetic disoder characterized by bone formation within muscles tendons and ligaments. It has an incidence of one in two million. We hereby report a case of FOP in a four year male child from a tribal family in orissa. CASE REPORT: 4 yr old male child presented with gradual development of stiffness of neck and hard nodules on his body for which his parents had sought all sort of indegenous treatment and manipulations by traditional bone setters. Patient returned to our hospital at the age of four years with widespread ossification and stiffness of neck, shoulders and back. He also had upper tibial osteochondromas and scalp nodules and valgus deformity of bilateral great toes. A diagnosis of FOP was made on clinical and radiological examination. CONCLUSION: Though rare, diagnosis of Myositis ossificans progressiva should be considered in a child with heterotopic bone formation and valgus deformities of great toes. Being a rare condition, treatment guidelines are not clear and this condition need further research.