[Pseudo-sarcomatous osteomyilitis in the child (author's transl)].

The authors report three unusual cases of paediatric osteomyelitis resembling a lytic or mixed osteosarcoma. The severity of the radiological lesions is such that only a diagnostic approach is possible before surgical biopsy. Under the effects of treatment, osteolysis resolved in two cases by bone eburnation in two cases and pandiaphyseal sequestration in one case. These three cases were collected in less than a year. Thus osteomyelitis is currently adding new diagnostic traps in bone pathology in children.