Pyomyositis of the iliacus muscle in an adolescent

Pyogenic sacroiliitis and pyomyositis in a patient with systemic lupus erythematous

Pyogenic sacroiliitis and pyomyositis are uncommon infectious diseases and their diagnoses are often delayed. They are typically seen in children and young adults and are rare in middle-aged people especially in those affected by rheumatic diseases. We present the first case of a Staphylococcus aureus related pyogenic sacroiliitis associated with iliacus and gluteal pyomyositis occurring in a patient with systemic lupus erythematosus. Antibiotic treatment was administered for a total of 6 weeks with a total recovery. Pyogenic sacroiliitis and pyomyositis, although remaining rare events, should be remembered as severe complications in immunosuppressed patients with inflammatory diseases. Early clinical suspicion, imaging diagnosis, and adequate therapy are decisive for the satisfactory outcome.

Lower extremities and iliopsoas pyomyositis with concurrent septic arthritis and spinal epidural abscess in a diabetic patient

Pyomyositis is a rarely encountered infection among diabetics, which usually affects lower extremities. Herein, we present a case of lower extremities and iliopsoas pyomyositis with concurrent septic arthritis and spinal epidural abscess in a patient with poorly controlled diabetes mellitus.

Pyomyositis of the iliacus muscle complicated with septic sacroiliitis

We report a rare case of pyomyositis of the iliacus muscle in a 29-year-old woman. After 2 weeks of adequate treatment, secondary septic sacroiliitis occurred, a complication that had not been described previously. Pyomyositis of the iliacus muscle must be considered in the differential diagnosis of acute pain in the hip region.