Stenotrophomonas maltophilia: a very rare cause of tropical pyomyositis.

Pyomyositis is a purulent infection of skeletal muscles that arise from hematogenous spread associated with abscess formation. Most often caused by Staphylococcus aureus in more than 90-95% of cases but other rare organisms can cause this infection. Herein we report a rare case of strenotrophomonas maltophilia as a cause of pyomyositis which is a rare occurrence, especially in immunocompetent adults. Strenotrophomonas is a multidrug-resistant aerobic non-fermentative, non-sporulating, gram-negative bacillus which usually produces nosocomial infections, but community-acquired infections are also rarely reported. This a first case report of strenotrophomonas maltophilia causing pyomyositis in an immunocompetent adult.