Pyomyositis in a patient with myeloma responding to antibiotics alone.

Pyomyositis is a rare purulent infection of skeletal muscle with striking clinical features. It usually occurs in patients living in the tropics but is increasingly being reported in immunosuppressed patients. The traditional approach to management has been surgical with drainage and debridement of the multiple muscle abscesses. We report a patient with myeloma who developed multiple muscle and lung abscesses associated with a Staphylococcus aureus septicaemia. The case was successfully managed with intravenous antibiotics alone with no recurrence of the abscesses during a later episode of neutropenia. The advantages of avoiding surgical intervention in immunosuppressed and thrombocytopenic patients are obvious.