[Ossifying periostitis (Garrè) and chronic sclerosing osteomyelitis. Diagnostic limits and therapeutic management]

Periostitis ossificans and sclerosing osteomyelitis are rare subtypes of non suppurative chronic osteomyelitis in which there is, additionally, a proliferation of periosteum leading to bony deposition secondary to a mild chronic infection making their diagnosis difficult. The authors report two clinical cases and try to release criteria helping to discern them because the prognosis and therapeutic management of these affections are different.