Fig. 11. 26-year-old female who had received liposuction few hours before visiting hospital presented with abdominal pain and vomiting.

Because BUN and serum creatinine showed increased levels of 35.5 mg/dL (normal range: 7.3-20.5 mg/dL) and 2.6 mg/dL (normal range: 0.49-0.91 mg/dL) on laboratory examination, only non-contrast CT scan was performed. On axial CT image, diffuse subcutaneous emphysema was seen (arrowheads). Both kidneys showed oedematous change without hydronephrosis. Patient was diagnosed with pre-renal acute renal failure. After intravenous administration of fluid, her renal function recovered without sequelae.