A hand infection from A. calcoaceticus (M. polymorpha)

Acinetobacter calcoaceticus (Mima polymorpha) is not a well known organism, and its identification can be confusing due to its variable morphology and sensitivity pattern. In a joint infection, delay in identification or appropriate treatment can result in added morbidity. An A. calcoaceticus (Mima) infection in the hand seems not to have been previously reported. The present case involving a finger joint infection illustrates the pathogenicity of A. calcoaceticus (Mima) and problems of treatment. Minocycline is recommended as the drug of choice in subsequent A. calcoaceticus (Mima) and (Herella) infections.