Massive periosteal elevation. An unusual presentation in acute haematogenous osteomyelitis of the long bones in children.

Although periosteal reaction in acute haematogenous osteomyelitis is known to occur and is well documented, massive periosteal reaction is rare. Two children with copious periosteal reaction around the shafts of the long bones are presented. This could be a manifestation of staphylococcal osteomyelitis as blood culture grew Staphylococcus aureus in one of the cases.