Empyema and psoas abscess in a previously undiagnosed diabetic patient.

A 48-year-old man presented with a 2-month history of polyuria, polydypsia, chest pain, fever, cough and extreme weight loss. He was diagnosed with diabetic ketoacidosis and investigations revealed widespread infection with an empyema complicated by bronchopleural fistula, and iliopsoas, suprapubic and periarticular abscesses. Streptococcus milleri was cultured from all sites. A multidisciplinary medical and surgical approach was required for treatment. This case highlights the immunosuppression, and life-threatening complications arising from undiagnosed diabetes mellitus.