a – rare case of caniform osteomyelitis of actinomycet due to forigen - body is reported

background: actinomycosis is a slow growing infection due to gram positive ، anaerobic ، or microaerophilic bacteria. case-report: a 19 years old man with foot pain witch has a history of trauma last year trauma caused a mild erythema swelling & tendernss and heald spontenously. after one year he had foot pain during playing football. he didn’t have fever. cell counts were normal and the mri had abnormal signal in medial portion of left foot and bone and soft tissue inflammation. in culture from operation room actinomyces species growed discussion: the patient didn’t have mycetoma triad and actinomyces probably due to foreign body (wood) peneterated. this disease is rare & reported to increase knowledge of the system