Abstract
This is a case report of a 12-year-old child with chromosome 22q11.2 syndrome who developed sarcoid dermatitis after tuberculosis exposure and Garre’s osteomyelitis from a carious tooth and odontogenic infection. Garre’s osteomyelitis is an uncommon form of osteomyelitis usually seen secondary to an exaggerated inflammatory response. Karl Garre first described this entity in 1893 as a suppurative condition in the tibia that exhibited focal thickening of the periosteum. Pell et al decribed its presence in the mandible in 1995 as a chronic isease with new periosteal bone formation. Gorman coined the term, periostitis ossificans, to specifically identify the formation of new bone overlying existing cortical bone. This term was extended from Gorman’s efinition by Nortje et al. Marx and Stern, however, tated that neither term is ideal because the periosteum oes not become ossified, but rather it deposits new one as infection-induced inflammation lifts off the corex. This condition may also develop in the mandible ue to genetic autoimmune diseases and in patients ho have an altered immune system.
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