| differential diagnosis of rib lesions: a case study from middle woodland southern ontario circa 230 a.d. | the right ribs of an adult male (#18) from the levesconte burial mound in southern ontario show extensive osteolytic and/or osteobastic lesions, some with bone thickening, interpreted herein as evidence of a chronic actinomycotic infection. in the alveolus, the presence of periapical abscesses and periodonitis with secondary inflammation may be associated with the pathogenesis of this bacterial disease by providing the normally commensurate actinomyces israelii with the necessary conditions for ... | 1990 | 2275481 |