Salmonella pyomyositis in patients with the human immunodeficiency virus.

Pyomyositis is a common disease in the tropics, mostly due to Staphylococcus aureus. We report two patients infected with the human immunodeficiency virus (HIV) who presented with fever and unilateral limb swelling and in whom pyomyositis was diagnosed in quadriceps and gluteus major, respectively. Salmonella enteritidis was isolated in both, with recurrent episodes of muscle involvement and secondary osteomyelitis in one case. Non-typhi Salmonella pyomyositis may occur in HIV + patients with a relapsing and aggressive clinical course in some cases.