[Emphysematous perinephric abscess with diabetes mellitus: a case report]

A 48-year-old woman was referred to our hospital with high fever and left flank pain. She was diagnosed with diabetes mellitus (DM), and abdominal computed tomography (CT) revealed left perinephric abscess with much emphysema. She underwent drainage of the abscess by left flank incision after treatment with antibiotics and insulin. The pus culture revealed Escherichia coli. Immediately after drainage, the symptoms began to subside. At three months after drainage, abdominal CT revealed no emphysema around the left kidney. At 18 months after the discharge, left perinephric abscess was not seen and DM was well controlled with insulin.